DougGraves Posted January 31, 2022 Share Posted January 31, 2022 I plan on making this an ongoing thing (which means I will probably do it once or twice and then forget about it). A very short list of dates to memorize on some nerdy topic. Starting with the history of life: 4 billion years ago - Single Celled Life 2 billion years ago - Multi-celled Life 1 billion years ago - plants .6 billion years ago - animals So starting 4 billion years ago roughly halving the time remaining for singled cell life, multi-celled life, plants, and animals. 1 Link to comment Share on other sites More sharing options...
ThaOGDreamWeaver Posted February 1, 2022 Share Posted February 1, 2022 12 hours ago, DougGraves said: So starting 4 billion years ago roughly halving the time remaining for singled cell life, multi-celled life, plants, and animals. Bet it was a Thursday. 1 WAKE UP YA MISCREANTS AND... HEY, GET YOUR OWN DAMN SIGNATURE. Look out for me being generally cool, stylish and funny (delete as applicable) on Excelsior. Link to comment Share on other sites More sharing options...
DougGraves Posted February 1, 2022 Author Share Posted February 1, 2022 Today the evolution of humans 4.2 million years ago - Australopithecus 2.1 million years ago - Homo Habilis, the first Homo species 2 million years ago - Homo Erectus 250,000 years ago - Homo Neanderthalensis 200,000 years ago - Homo Sapiens Australophithecus were making stone tools 3.3 million years ago. There is also signs of fire use by Australophithecus 1.4 million years ago. So making tools and using fire predates even the first Homo species. 1 Link to comment Share on other sites More sharing options...
DougGraves Posted February 7, 2022 Author Share Posted February 7, 2022 Mesoamerican Cultures Olmec 1200-300 BCE First major stone cities in the Americas Zapotec 500 BCE - 900 CE Mayan 250 - 950 CE Toltec 900-1100 CE Aztec 1345-1521 CE I never think of Mesoamerican cities being as old as 1200 BCE. No easy way to memorize these with 2 dates for each. Link to comment Share on other sites More sharing options...
Recommended Posts