Yuri gagarin was a young russian pilot. how did he become world famous?

On that day in 1961, Russian cosmonaut Yuri Gagarin (left, on the way to the launch pad) became the first human in space, making a 108-minute orbital flight in his Vostok 1 spacecraft i think

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

it doesn't. it was imagined up in the middle ages.