Misc: What is the first sign of the zodiac, symbolized by the ram?

Questions

In 1867 Charles---------- , discovered the ozone layer in the upper atmosphere, born.?

In 1895 First known ---------- race.?

In 1910 Jacques Yves ---------- (in France), marine explorer, born.?

In 1918 Nelson---------- , South African civil rights leader & politician, born.?

In 1935 Gene---------- , comedic actor, born.?