Below, you'll find the 'smartest' people in the entire known world by their intelligence quotient. By no means is this a definite list of all the smart people that ever existed, it's not like we can go back to the past, and force people to take IQ tests.
Stephen Hawking
Stephen Hawking is one most well-known "smart" people in this generation. He is a 69 year-old English theoretical physicist and cosmologist. His scientific career spans over 40 years of controversial studies and books, which leads us to a conclusion that he might be a bright guy.
Stephen Hawking has a widely rumored IQ of 160. How much is that? Likely more than your score. Only about 0.5% of the population have greater than 140 IQ. People with that high of a score are in that sweet spot of earning the Nobel Peace Prize, along with a sweet check.