TIL that in 2024 a PhD student "accidently" discovered Valeriana - a Edinburgh sized hidden Mayan city in Mexico while browsing for data on the internet.
bbc.comu/ayebshek — 21 hours ago
u/ayebshek
TIL that Oxygen was originally a mass-extinction event 2.4 billion years ago, called the "Great Oxygenation Event" which introduced free oxygen to the atmosphere and was toxic to nearly all life at the time, triggering a global mass extinction and a 300-million-year ice age.
en.wikipedia.orgu/TrayusV — 7 days ago