useless trivia: What Word Means: In Debt To Another - Due To?

Questions

In 1863 First ---------- railway opens in London.?

In 1877 Frederick Gardner Cottrell, invented the elecrostatic precipitator, used for ---------- control and air ionizers, born.?

In 1920 ---------- of Nations established.?

In 1925---------- , jazz drummer, born.?

In 1944 First mobile ---------- delivered, Philadelphia PA.?