useless trivia: What Word Means: A First Name - An Engine Used In Mining - A Speakeasy?

Questions

In 1979 (Vietnam) Vietnamese forces capture ---------- from Khmer Rouge.?

In 1798 ---------- Amendment of American Constitution ratified, Judicial powers construed.?

In 1799 First ---------- imposed.?

In 1862 Frank---------- , publisher and founder of Doubleday and Co., born.?

In 1868---------- , proved Einstein right about light bent by gravity, born.?