Misc: If you have served an ace, you are playing what sport?

Questions

In 1783 Agustin I de---------- , emperor of Mexico (1822-23), born. ?

In 1783 Agustin I de Iturbide, emperor of ---------- (1822-23), born. ?

In 1825 ---------- transportation is born with first track in England. ?

In 1918 Sir ---------- Ryle, British radio astronomer, astronomer royal 1972-82, born. ?

In 1918 Sir Martin---------- , British radio astronomer, astronomer royal 1972-82, born. ?