**Profession:** **Philosopher** and **Mathematician**

**Biography:** Holding an integral place in the history of mathematics and philosophy, Leibniz was responsible for the creation of differential and integral calculus, along with Isaac Newton. Leibniz's notation has been widely used ever since.

Leibniz later became one of the most prolific inventors of mathematical calculators. Beyond this he made major contributions to philosophy with his philosophical optimism, though he wrote on a vast array of topics in his lifetime.

**Born: July 1, 1646**

**Birthplace:** Lepzig, Electorate of Saxony, Holy Roman Empire
**Star Sign: Cancer**

**Died: November 14, 1716** (aged 70)

## Historical Events

- 1675-10-29 Gottfried Wilhelm Leibniz makes the first use of the long s, ∫, for integral, helping discover integral and differential calculus
- 1675-11-11 German mathematician Gottfried Wilhelm Leibniz demonstrates integral calculus for the first time to find the area under the graph of y = f(x) function