MAPS OF HISTORY

MAPS OF HISTORY · ON THIS DAY · January 7

THE DAY IN HISTORY · JANUARY 7

January 7 in history

1610

Galileo turns his telescope on Jupiter and finds four moons that do not orbit the Earth — and the old cosmos begins to give way.

READ THIS MOMENT →

THE DISPATCH

One short letter when a new atlas opens — and a printable atlas study guide of your choice is yours now, free.

NO TRACKING · YOUR ADDRESS IS USED FOR THE DISPATCH AND NOTHING ELSE · UNSUBSCRIBE ANYTIME