It's impossible to pinpoint a single individual as the "first human" on Earth. Human evolution is a long and complex process that spans millions of years.
Instead of a single individual, we have the emergence of different early human species like Homo habilis and Homo erectus, which evolved over time in Africa. The species that we belong to, Homo sapiens, emerged around 300,000 years ago in Africa.
The earliest known fossil of Homo sapiens, found in Morocco, dates back about 315,000 years. So, rather than one individual, we can say that the Homo sapiens species, which we are a part of, evolved in Africa over a long period.
