Nitpickery - I note no entry about sea level rise ca 20000 years ago, nor the end of the Younger Dryas.
Maudslay's thread cutting lathe of 1800 is also absent.
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Nitpickery - I note no entry about sea level rise ca 20000 years ago, nor the end of the Younger Dryas.
Maudslay's thread cutting lathe of 1800 is also absent.
Next time you/we/me face a problem, or think that something important is troubling, have a look at this page and you'll relaize that almost everything is pointless. Pair this timeline with the biggest photo of the milky way [0] and you can wash all your troubles away :-) [0] https://news.ycombinator.com/item?id=26490579
For example, Ancient Greek, developed in ~8th or 10th century BCE (facts aren't 100% clear), is typically credited as the first phonetic alphabet, where characters represent sounds (and the only one - all others being derived from it). The OP says,
> 1850: earliest alphabetic script (Proto-Sinaitic, Sinai and Egypt)
They may mean something slightly different. Also an alphabet of sorts preceded Ancient Greek, maybe the one in the quote above, but lacked vowels among other things, so it depends on your definition of phonetic alphabet.
That's just on example, know there are many ambiguities of definition, fact, and interpretation.
....
If you want an up-to-date, authoritative, useful guide to geological history, you want the International Chronostratigraphic Chart. I'm impressed that this is kept updated and is so well done.
I.e. a tragedy.
The note at the end puts this timeline into calendar years, which is mind-blowing: > Rescaled to a calendar year, starting with the big bang at 00:00:00 on 1 January ( ), the Sun forms on 1 September ( ), the Earth on 2 September ( ), earliest signs of life appear on 13 September ( ), earliest true mammals on 26 December ( ), and humans just 2 hours before year’s end ( ). > For a year that starts with the earliest tr…
There are an estimated hundreds of billions of galaxies with billions of stars, and they are all very spaced out too. Most stars are significantly bigger than our planet, and our planet can fit over 7.5 billion humans with a lot of extra space.
There are 8760 hours in a year, so according to the above humans have existed around 1/4380 of the time the universe has. Meanwhile idk the exact amount but we occupy less than 1/1,000,000,000,000 of the space of the universe.
Interestingly, accounting the duration and density of events: Empires and conquests - 3000 years, Industrial Revolution - 300, Scientific Revolution - 200, Technological Revolution - 50 Every year we go through as much as 4x events than in 1945, and as much as 60 medieval years (!) squished in one year.
I mean, there’s presumably a strong recency bias here.