He is best known for being the first person to sail from Europe to discover North America. When he was sailing west to find new route to Asia, he landed on the East Coast of America.
Hope this helps!
THe correct answer is a or b
April 12 was already a huge day in space history twenty years before the launch of the first shuttle mission. On that day in 1961, Russian cosmonaut Yuri Gagarin<span> became the first human in space, making a 108-minute orbital flight in his Vostok 1 spacecraft.</span>