A Brief Introduction to Archaeoastronomy The study of the astronomical practices, celestial lore, mythologies, religions and world-views of all ancient cultures we call archaeoastronomy. We like to describe archaeoastronomy, in essence, as the "anthropology of astronomy", to distinguish it from the "history of astronomy".
History of astronomy - Galileo Galilei (1564–1642) crafted his own telescope and discovered that our Moon had craters, that Jupiter had moons, that the Sun had spots, and that Venus had phases like our Moon.
The Jantar Mantar is a collection of architectural astronomical instruments, built by Sawai Jai Singh who was a Mughal Commander and served Emperor Aurangzeb and later Mughals. The title of (King) and Sawai was bestowed on him by Emperor Mohammad Shah. Jai Singh II of Amber built his new capital of Jaipur between 1727 and 1734. It is also located in Ujjain and Mathura.