1618 - What happened in 1618 ?

March 1618

Thursday 08:

Johannes Kepler discovers the third law of planetary motion (he soon rejects the idea after some initial calculations were made but later on May 15 confirms the discovery).

May 1618

Tuesday 15:

Johannes Kepler confirms his previously rejected discovery of the third law of planetary motion (he first discovered it on March 8 but soon rejected the idea after some initial calculations were made).

Wednesday 23:

The Second Defenestration of Prague precipitates the Thirty Years' War.

October 1618

Monday 29:

English adventurer, writer, and courtier Sir Walter Raleigh is beheaded for allegedly conspiring against James I of England.