Sparta and The Athenian League form a peace pact.
70
1671 AD
German mathematician-philosopher Gottfried Wilhelm von Leibniz, recognised as one of the founding fathers of calculus, designs a calculating machine called the Step Reckoner.
Facts, facts and more facts
German mathematician-philosopher Gottfried Wilhelm von Leibniz, recognised as one of the founding fathers of calculus, designs a calculating machine called the Step Reckoner.
