The question of who the first person on Earth was is a complex and debated topic. According to scientific consensus, the first human-like species, Homo sapiens, appeared in Africa around 300,000 years ago. However, it is important to note that humans did not suddenly appear as a result of a single individual. Evolution is a gradual process, and the transition from earlier hominid species to modern humans took place over a long period of time.
It is also worth mentioning that the concept of a "first person" is subjective and depends on how one defines a "person." If you are referring to the first anatomically modern human, it is believed to be a member of our species who lived in Africa. However, pinpointing a specific individual as the "first" is impossible due to the gradual nature of evolution and the lack of fossil evidence from that time.
In summary, the first human-like species, Homo sapiens, appeared in Africa around 300,000 years ago, but it is impossible to identify a specific individual as the "first person" on Earth.