After the ideas of mathematicians like Archimedes spread to China and other Eastern countries, they also began to do more advanced calculations. Zu Chongzhi, one of the best Chinese mathematicians of the time, was the first person to accurately propose the first six digits of Pi. He calculated it to be 3.141592 also known as 355/113, unfortunately many of his books and works have been lost, so no one knows exactly how he actually found his