Are scientists trying to figure out how to make people live on mars?
The moon landings proved that we have the means to live on other planets (including Mars). What we need is a way to get the necessary supplies (food, oxygen, water, etc) to send people to mars and bring them back to earth.
The official figure peaked at about 6.3 million. The true figure was higher, if one includes people trying to live on short term part time work. The population of Germany at the time was about 65 million. In Germany 1932 there were six million people unemployed, due to the wall street crash. Hitler promised that if he were to come to power, he would abolish unemployment.
It is not known which came first..scientists are still trying to figure this out. Archaebacteria "the ancient ones" are called this because they live in extreme environments similar to environments when the earth was first created. However, it is still not known which came first because Archaea, Eubacteria, and Eukaryotes are all so distinct from one another.