The Astronomical Observatories of Jai Singh c23.s1: E. Chronology
The Astronomical Observatories of Jai Singh c23.s1
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E. Chronology
c23.s1.1
There has been considerable difficulty in ascertaining the dates of construction of the observatories, etc. Sir Robert Barker, who was contemporary with Jai Singh, stated that the observatory at Benares was supposed to have been built by Akbar; James Prinsep gave the date as A.D. 1680—six years before the birth of Jai Singh; another writer gives 1693, and so on: of the following dates, those relating to Jai Singh must consequently be used with some circumspection.
c23.s1.2
| | A.D. |
| Greenwich observatory founded . . . . . . . . | 1675 |
| Jai Singh born . . . . . | 1686 |
| Newton's *Principia* published . . . . . . . . | 1687 |
| Jai Singh succeeds to the Amber Gadi . . . . . | 1699 |
| Halley's *Synopsis of Cometary Astronomy* . . . | 1705 |
| Death of Aurangzeb . . . . . | 1707 |
| Jai Singh invests Thun . . . . . . . . . . . | 1712 |
| G. D. Cassini dies . . . . . | 1712 |
| Farrukh-Siyar . . . . . | 1713 |
| Jai Singh displaces Budh Singh of Būndi . . . | 1718 |
| Muhammad Shāh . . . . . | 1719 |
| Jai Singh appointed the Emperor's deputy at Agra and Mālwa . | 1719 |
| Great earth-quake at Delhi . . . . . . . . . | 1720 |
| Flamsteed dies . . . . . | 1720 |
| Jai Singh's expedition against Jāts of Bharatpur . | 1722 |
| Delhi observatory built . . . . . . . . . . | C. 1724 |
| *Historia Cœlestis Britannica* published . . . | 1725 |
| Isaac Newton died . . . . . | 1727 |
| Jaipur city built . . . . . | C. 1728 |
| The *Zij Muḥammad Shāhī* finished . . . . . . | C. 1728 |
| Aberration of light discovered by Bradley . . | 1728 |
| Observations recorded at Delhi . . . . . . . | 1729 |
| Jai Singh resigns the province of Mālwa to the Peshwā | 1734 |
| Jaipur observatory built . . . . . . . . . . | 1734 |
| Benares observatory built . . . . . . . . . | 1737 |
| Nādir Shāh sacked Delhi . . . . . . . . . . | 1739 |
| Halley died . . . . . | 1742 |
| Jai Singh died . . . . . | 1743 |