music: 70's Chart Toppers: Name The Artist: Ding Dong Ding Dong?

Questions

In 1875 Pacific ---------- formally opens.?

In 1883 John Maynard ---------- (in Cambridge, England), another economist, born.?

In 1900 Dennis---------- , inventor of holography (3D laser photography), born.?

In 1940 Battle of ---------- begins in WW II.?

In 1940 First synthetic rubber tire exhibited---------- , OH.?