Short answers, pulled from the story.
Sawai Jai Singh II founded Jaipur on the 18th of November 1727. The construction of the city began in 1726 and the foundations were laid within a year of the decision to abandon the ancestral capital of Amber.
The old city of Jaipur was painted pink in 1876 by Maharaja Sawai Ram Singh II to welcome Albert Edward, the Prince of Wales. This specific shade of pink was chosen to symbolize hospitality and has remained a defining characteristic of the city's identity for over a century and a half.
The Jantar Mantar observatory in Jaipur is a World Heritage Site built by Sawai Jai Singh II to measure time and track celestial bodies with unprecedented accuracy for the 18th century. It features the Samrat Yantra, the world's largest stone sundial, and stands as the largest and best-preserved of the astronomical observatories built by the Maharaja across India.
Heavy rains from a cloudburst caused the Dravyavati River to flood in August 1981, resulting in the deaths of eight people and significant damage to the city including the airport. A major rejuvenation project was completed in 2022 to transform the river from a source of pollution into a symbol of environmental sustainability.
Jaipur hosts major manufacturing plants for companies such as JCB, Hero MotoCorp, and Robert Bosch GmbH, making it a major hub for automotive industries. The city is also among the top emerging IT hubs of India and is home to the Bhamashah Techno Hub, Asia's largest incubator.
The highest temperature ever recorded in Jaipur was 46 degrees Celsius on the 23rd of May 1994. The lowest temperature recorded was 1 degree Celsius on the 31st of January 1905.