Khalifa bin Hamad Al Thani vs Sawai Jai Singh II

Khalifa bin Hamad oversaw the drafting and promulgation of Qatar's first provisional constitution in 1970, which established the Emir as head of state, created a Council of Ministers, and outlined basic rights. It was later replaced by a permanent constitution in 2004.

Khalifa bin Hamad Al Thani seized power from his cousin, Emir Ahmad bin Ali, on February 22, 1972, while Ahmad was in Iran. The coup was bloodless and received backing from the Al Thani family and the Qatari military.

Emir Khalifa bin Hamad nationalized Qatar's oil industry, taking full control of the Qatar Petroleum Company (now QatarEnergy). This move gave the state direct control over oil revenues, funding infrastructure and social programs.

On June 27, 1995, Emir Khalifa bin Hamad was deposed in a bloodless coup by his son, Hamad bin Khalifa Al Thani, while Khalifa was abroad in Switzerland. Hamad assumed power and initiated major reforms.

Sawai Jai Singh II founded the planned city of Jaipur, designed by architect Vidyadhar Bhattacharya. The city was built according to Vastu Shastra and became a major center of trade and culture.

Jai Singh II constructed five astronomical observatories called Jantar Mantar in Delhi, Jaipur, Ujjain, Mathura, and Varanasi. These instruments were used to measure time, track celestial bodies, and update astronomical tables.

Jai Singh II led campaigns against the Marathas and Jats to protect his kingdom. He successfully defended Jaipur from Maratha raids but was forced to pay tribute to the Marathas later.

Jai Singh II compiled a new set of astronomical tables, the Zij-i Muhammad Shahi, based on his observations. This work corrected errors in earlier Islamic and Hindu astronomical texts.