55 comments

  • teleforce 16 hours ago ago

    Fun facts, Mansa Musa (Musa Keita) who's king in Mali Empire in Western Africa is the richest person ever lived [1].

    It's reported that he unintentionally disrupted Eqyption economy for at least ten years. He did that by spending and giving charity in gold enroute to pilgrimage or Hajj in Mecca while staying about 3 months in Egypt. Allegedly he had hundred camels in towing, each camel carrying hundreds of pounds of pure gold. Pilgrimage to Mecca is the journey that every Muslim has to make once in a lifetime if they can afford it.

    [1] Mansa Musa: The richest man who ever lived (105 comments):

    https://news.ycombinator.com/item?id=19350951

    [2] Mansa Musa:

    https://en.wikipedia.org/wiki/Mansa_Musa

    https://news.ycombinator.com/item?id=19350951

    • opo 11 hours ago ago

      As your wikipedia link states:

      >...While online articles in the 21st century have claimed that Mansa Musa was the richest person of all time,[91] historians such as Hadrien Collet have argued that Musa's wealth is impossible to calculate accurately.

      We don't know the exact wealth of Manda Musa and there really isn't a good way to compare wealth between different eras. Even in the same general timeframe, wouldn't the khanates of the mongol empire be considered more wealthy?

      • teleforce 9 hours ago ago

        Nobody really know for sure to be honest but he's most probably one of the top ten.

        The linked BBC article in the HN post has the list for top 10 richest man in history with Mansa Musa at the very top but Shah Jahan the Mughal Emperor who's the owner of Taj Mahal is not even in the list [1].

        The 10 richest men of all time:

        1) Mansa Musa (1280-1337, king of the Mali empire) wealth indescribable

        2) Augustus Caesar (63 BC-14 AD, Roman emperor) $4.6tn (£3.5tn)

        3) Zhao Xu (1048-1085, emperor Shenzong of Song in China) wealth incalculable

        4) Akbar I (1542-1605, emperor of India's Mughal dynasty) wealth incalculable

        5) Andrew Carnegie (1835-1919, Scottish-American industrialist) $372bn

        6) John D Rockefeller (1839-1937) American business magnate) $341bn

        7) Nikolai Alexandrovich Romanov (1868-1918, Tsar of Russia) $300bn

        8) Mir Osman Ali Khan (1886-1967, Indian royal) $230bn

        9) William The Conqueror (1028-1087) $229.5bn

        10) Muammar Gaddafi (1942-2011, long-time ruler of Libya) $200bn

        [1] Is Mansa Musa the richest man who ever lived?

        https://www.bbc.com/news/world-africa-47379458

        • bernds74 4 hours ago ago

          Some guy once famously noted that wealth is not measured in gold or silver, but in goods and services. Mansa Musa didn't have a Ferrari F40, or an RTX4090, or air conditioning. He couldn't buy a trip to low earth orbit or get cancer treatment if he needed it. Many people in this day and age are vastly more wealthy than he was.

          • rayiner 9 minutes ago ago

            That one way to measure wealth. Another would be to measure it in terms of how much labor you can get from your fellow humans. Mana Musa was far more wealthy by that measure.

          • Winsaucerer 4 hours ago ago

            That's definitely a reasonable way to think about it. Another though is in terms of social status and ability to direct human labor, in which case most people are not more wealthy.

            • Retric 2 hours ago ago

              On that scale Xi Jinping is likely the richest person to ever live. https://en.wikipedia.org/wiki/Xi_Jinping

              You rarely see modern dictators on these lists but populations and economic prosperity have exploded to the point where historic kings can’t really compete.

              • Winsaucerer 9 minutes ago ago

                I actually do think of him as a candidate for wealthiest person to have ever lived.

        • jl6 8 hours ago ago

          Mansa Musa’s headline story is that his spending caused inflation in Egypt. I understand that estimate of Augustus Caesar’s wealth is based in part on him considering Egypt, in its entirety, to be his personal possession. It feels like “owning the whole country” should probably outrank “causing inflation in that country”, it’s probably meaningless to try to compare across such vast gulfs of time and place.

          • notahacker 5 hours ago ago

            Musa had an empire too, one that possessed so much gold that his holiday tips devalued the principal store of wealth in foreign countries. Agree the comparisons aren't particularly meaningful; a lot depends on whether your consider having lots of gold to show off with to be more valuable than building an industrial empire, or even owning a bunch of now-common consumer goods and having access to healthcare more impressive than anything Augustus or Musa bought

        • aquova 3 hours ago ago

          Is there a reason this list wouldn't include any of their successors, who inherited the vast majority, if not all, of their holdings? Did Tiberius not inherit enough of Augustus's wealth to make this top 10 as well?

          • anton-c an hour ago ago

            Iirc he gave some to his wife(?)

            Anyone who had multiple people in their will diluted it. Though I feel Augustus got all of Julius' will which goes against this, I imagine powerful people might have a few people they want to leave something for when they die.

        • LunaSea 7 hours ago ago

          Aren't Bezos, Musk, Gates & co richer the first half of the people on the list?

          • flohofwoe 6 hours ago ago

            Not until one of them buys the entire US armed forces, installs himself on the throne in Washington and declares all of California his own personal property - just to draw a parallel to the number 2 spot ;)

            • rayiner 7 minutes ago ago

              The fact that none of them could come close to doing that aptly illustrates why they’re not nearly as wealthy as those in the past.

            • euroderf 6 hours ago ago

              Soon.

        • saagarjha 6 hours ago ago

          fwiw Mughal≠Mongol

    • romaaeterna 3 hours ago ago

      Document-only claim without any archeological support means that I'm highly skeptical.

      • dyauspitr 26 minutes ago ago

        That’s the vast majority of antiquity unfortunately.

  • snthd 4 hours ago ago

    Can this displace the mercury process used by illegal miners?

    Reuters - Insight: Amazon rainforest gold mining is poisoning scores of threatened species https://www.reuters.com/business/environment/amazon-rainfore...

  • bcoates 12 hours ago ago

    This article leaves me super unclear on the metallurgical process going on here--you fire gold ore on a bed of glass rubble and the impurities are adsorbed into the ceramic or ???

    • colechristensen 12 hours ago ago

      Yup.

      A whole lot of chemistry process is just X dissolves in Y but not in Z, and using that in order to separate and purify.

      In this case metal oxides dissolve in glass (sand, which is a silicon oxide, mostly) but gold doesn't A) oxidize under reasonable conditions or B) dissolve in the glass. Sand or glass waste is melted, the not gold dissolves into the molten glass.

  • goodmunky 5 hours ago ago

    Africa is a such a vast and diverse region that “Africans” is nearly meaningless in this context. But you already know that.

  • gregschlom 16 hours ago ago

    This made me realize that I have absolutely no idea what was going on in Africa during medieval times (and only a sliver of an idea in Europe).

    • jihadjihad 16 hours ago ago

      Mansa Musa is totally worth reading about, as are philosophers etc. like Ibn Khaldun and others (Ibn Khaldun wrote about Mansa Musa's pilgrimage, wealth, etc.).

      There was a lot going on in medieval Africa, I wish I had some good sources, if anyone knows any I'd be interested in expanding my knowledge as well!

    • ty6853 15 hours ago ago

      The Africans also beat the mainland europeans by a long long shot in inventing a legal system that repels a lot of the centralized authoritarian elements found in european and american legal systems to this day, and did a relatively good job to many systems of enforcing the individual and property rights of even the common tribesman.

      The somalis had 'xeer', which was basically peer-to-peer legal system where every man could enforce property and individual rights himself, but checked by a decentralized court system that was appealable up the chain between families/tribes.

      It is so robust it outlasted the centralized government of Somalia and democracy, and even outperformed it.

      • demosthanos 15 hours ago ago

        > It is so robust it outlasted the centralized government of Somalia and democracy, and even outperformed it.

        This is a pretty rose-colored way of putting it. Put another way: Somali society has a long and deep history of decentralized clan-based organization which, for better or worse, was deep-rooted enough that replacement with a centralized democratic government failed.

        The system you describe didn't merely survive the failure of centralization, it was one of the existing Somali institutions that resisted centralization and won out in the end. Which depending on one's perspective on Somalia's current state could make it deeply problematic as a local maximum that makes the current status quo unassailable.

        • MangoToupe 3 hours ago ago

          Why do you consider this problematic? Especially if a "centralized democracy" undermines the social structures that are known to work

          • demosthanos 2 hours ago ago

            This is what I said:

            > Which depending on one's perspective on Somalia's current state could make it deeply problematic

            It's pretty hard to look at Somalia's current state and say that their current social structures are "known to work" by essentially any metric.

            • ty6853 an hour ago ago

              As in any society, the practical question is how they work against the alternatives. By most metrics the xeer system had better economic and likely even civil rights than Somalia under central governance[].

              The Somalis have discovered the same thing the west has, that 'democracy' (and I say that not as the aspirational but rather the implemented) is hallmarked by a brutal fight between factions for power, resulting in the same sort of thing found in say the US where 2 factions bitterly fight for what ends up being a largely all-or-nothing central power seat that then sets its sights on brutalizing the other half at all costs.

              [] https://www.sciencedirect.com/science/article/abs/pii/S01475...

              • vkou 4 minutes ago ago

                Remember when the other faction in the US was brutalizing their political opponents, kidnapping them without trial, ignoring lawful court orders to release them, and imprisoning people for political speech after seizing power?

                Me neither, because it didn't happen, and any attempts to both-sides this are dishonestly partisan.

                Neither has a problem brutalizing foreigners in other countries, of course, but there's at least a veneer of legal process around that.

              • nullc an hour ago ago

                An interesting demonstration of relativism is that we might use the same phrase, say "brutally killed", to describe a players dominance in a friendly game of monopoly as we would for a Somali warlord firing a round through the head of a rival.

                But, strangely, they are not the same thing at all.

                • demosthanos 2 minutes ago ago

                  Exactly. Also, OP pointedly avoided addressing the fact that the existing Somali institutions are responsible for the fact that their "democracy" devolved into warlords brutally shooting each other. It's classic "stop hitting yourself" logic. "The old system is clearly better because when we tried the new system the old system fought back and killed people."

        • colechristensen 12 hours ago ago

          shrug clans are small states (or whatever label you want to put on the organization that starts with small family tribes and scales to multi-continent empires), that kind of society organization was more or less everywhere in the history of every human society. There is a tendency everywhere towards larger, more complex states and a path up and down the scale locally as the bigger ones are created and fall.

          • demosthanos 11 hours ago ago

            > clans are small states

            Nope, clans are definitionally not states for several reasons. A state has definite territory, whereas clan-type structures have tended to overlap with each other geographically because they're usually embedded in some larger society. A state by definition has centralized authority whereas clans may not.

            > or whatever label you want to put on the organization that starts with small family tribes and scales to multi-continent empires

            There is no such label because these organizations are not just shades on the same theme at different sizes, they're fundamentally different in character.

            > that kind of society organization was more or less everywhere in the history of every human society

            True, but there are wide variances in how long in the past that form of organization was dominant.

            You won't see Egypt reverting to decentralized non-state clan-oriented governance any time soon because they've been ruled by one state or another for 5000 years.

      • KolibriFly 5 hours ago ago

        It makes you wonder how many other decentralized systems have existed or still exist under the radar, and what we might learn from them

      • wtcactus 7 hours ago ago

        What you are describing is a clan system. Something that could be found all over the world and something most cultures replaced by more advanced and fairer systems of governance centuries ago.

        In fact, most of present day problems in Africa are still connected to the continued usage of that system.

    • KolibriFly 6 hours ago ago

      Same here, most of what I learned growing up barely touched on African history beyond Egypt or colonialism. Stuff like this really highlights how much was going on

  • kleton 15 hours ago ago

    This is called cupellation. Romans used clay crucibles

    • declan_roberts 12 hours ago ago

      Cupellation is considerably earlier than this method. Some 2,000 years earlier. Cupellation is also very effective at removing base metals.

      I'm curious how pure they get gold with this glass method. If it's not as pure as Cupellation then that would explain why it wasn't widely used outside of west Africa.

  • KolibriFly 6 hours ago ago

    Innovation doesn't just come from empire-scale institutions

  • detourdog 16 hours ago ago

    What I love about the process is that it seems to have developed by playing with fire.

    • motorest 9 hours ago ago

      > What I love about the process is that it seems to have developed by playing with fire.

      Also known as experimentation, which is the whole basis of the scientific process.

      • detourdog 8 hours ago ago

        What is the difference between the two? No where else did the scientific method develop this process. Play can produce surprising results and methodologies stagnates development.

        • motorest 7 hours ago ago

          > What is the difference between the two?

          There isn't.

          Referring to experimentation as "playing with" feels like a attempt to demean the output.

          • detourdog 2 hours ago ago

            Sometimes it's best to interpret things in a neutral way. A negative point of view hampers insight. I think the output speaks for itself and doesn't need a defense.

          • euroderf 6 hours ago ago

            "playing around with" sounds more dignified.

            • detourdog 2 hours ago ago

              I don't perceive the difference. "working with fire" maybe different but I'm still fine with my word choice.

    • rsynnott 9 hours ago ago

      I mean, you could say that of basically all metallurgy prior to the 19th century.

    • JumpCrisscross 15 hours ago ago

      > it seems to have developed by playing with fire

      Or someone melted down a glass and gold object and noticed the gold that floated (precipitated?) out was purer than that which went in.

      • defrost 15 hours ago ago

        Which is literally playing with fire.

        Even today various artists playing with fire rediscover that while gold doesn't naturally work into or onto glass it's still possible to adhere gold to glass if the timings and tempreptures are "just right".