Yes and they knew about the significance of a zero symbol in mathematics.
Pengui
George washington carver
Rene Descartes, Anders Celsius, Gabriel Fahrenheit
what is astronomers and mathmaticians
Aztecs and Mayans.
some of the famous Mayan leaders are Jeniffer Samantha and big Greg Jon
hypatia of Alexandria
John Napier.
"why" is not a mathematical symbol.
Pringles
they would write on trees, temples, and other famous buildings
about 1,241,100,000,000 but all i know is 3.1415926535987932384