Timeline Sunday 25 September 1644

2nd Millennium › 17th Century › 1640s › 1644 › September 1644 › 25 September 1644

Sunday 25 September 1644

All

Person

Event

Conflicts

Disaster / crisis

Science

Culture

Companies

Countries

All times in UTC · Dashed edge = started before, or continues beyond, this day

Events on Sunday 25 September 1644 1

1644 – 1710 Ole Rømer Measurer of Light The astronomer who first demonstrated that light travels at a finite, determinable speed.

100%

Density