Answer:
It wasn't until the 16th century that the Polish mathematician and astronomer Nicolaus Copernicus presented the heliocentric model of the Solar System, where the Earth and the other planets orbited around the Sun
Explanation:
Basically the first people :)
I think you forgot to give the options along with this question. I am answering the question based on my knowledge and research. The historical event that would be most useful to include would be President Johnson's escalation of the Vietnam War after the Tonkin Gulf incident. I hope the answer helps you. <span />