Phylogenetic tree linking all major groups of living organisms, namely the Bacteria, Archaea, and Eukarya, as proposed by Woese et al 1990, with the last universal common ancestor (LUCA) shown at ...

All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA—and it likely lived on Earth only 400 million years after its formation.

EVERY LIVING THING: The Great and Deadly Race to Know All Life, by Jason Roberts A professor asks a student to go on a plant-collecting trip, a perilous journey from Sweden to Suriname in 1754.

Now known as Prometheus, the tree was found to be nearly 5,000 years old. That means Prometheus came into existence around the time humans were exiting the Stone Age and beginning to work with bronze.