Which Came First Prokaryotes Or Eukaryotes?

Prokaryotes and Eukaryotes:

1. Prokaryotes came first, with speculations stating that they appeared at least 3.8 billion years ago.
2. Prokaryotes are underdeveloped cells, undifferentiated organelles with no nuclei.
3. They have circular DNA.
4. It suggests that prokaryotes evolved first.