These 2 videos give tribute to 2 men who have been given the title of the first man in space.
On August 16, 1960 Joe Kittinger rode under a balloon to an altitude of 102,800 feet (just less than 20 miles) and then jumped out. He reached a speed of 614 MPH (speed of sound is 770 MPH) and is given credit for several World records including the highest parachute jump, the longest freefall and the fastest speed ever reached by a human without a machine.
The definition of where space begins varies by who you ask but the most widely held belief is 60 miles.
Yuri Gagarin was launched on April 12, 1961 in the Vostock 1 spacecraft reaching an altitude of 188 miles making him the official first man in space.