who built the jantar mantar why was it build
Jantar Mantar, New Delhi Jantar Mantar is located in the modern city of New Delhi. It consists of 13 architectural astronomy instruments. The site is one of five built by Maharaja Jai Singh II of Jaipur, from 1723 onwards, as he was given by Mughal emperor Muhammad Shah the task of revising the calendar and astronomical tables. There is a plaque fixed on one of the structures in the Jantar Mantar observatory in New Delhi that was placed there in 1910 mistakenly dating the construction of the complex to the year 1710. Later research, though, suggests 1724 as the actual year of construction.
History of construction During the Bronze Age the corbelled arch came into use such as for beehive tombs. The wheel came into use but was not common until much later. Heavy loads were moved on boats, sledges (a primitive sled) or on rollers. The Egyptians began building stone temples with the post and lintel construction method and the Greeks and Romans followed this style.