n 1855, at the age of 34, he published his now famous aphorism “omnis cellula e cellula” (“every cell stems from another cell”). With this approach Virchow launched the field of cellular pathology. He stated that all diseases involve changes in normal cells, that is, all pathology ultimately is cellular pathology.

1. The year of establishment of Jaipur is 1727. This city was founded by Maharaja Sawai Jai Singh II. He was the king of Kachwaha dynasty. Jaipur is also known as the "Pink City".

2. There were many reasons behind the establishment of Jaipur. The most important reason was that Maharaja Sawai Jai Singh II had to shift the capital of his kingdom to a safer place. Jaipur was located in a secure location and was also a prosperous trading centre.

Infrastructure refers to the basic physical and organizational structures, facilities, systems, and services that are necessary for the functioning of a society, economy, or organization. It encompasses a wide range of essential components, including

1. The distance covered by the first train between Bombay and Thane in 1853 was approximately 34 km.

2. This train was pulled by three steam engines named Sahib, Sultan and Sindh. The train had 14 coaches and was carrying about 400 people.