From the beginning of Sikhism from Guru Nanak Dev Ji till today Land Of Punjab played an important role as the Home Land Of Sikhs various division took place but still today Sikhs live in Punjab just like a Home State.
Below are some of the maps of Punjab from From old to new :
Punjab With All Six Rivers
Punjab During British Rule
The Punjab Of India Was Trifurcated into Punjab, Harayana And Himachal Pradesh in 1966
The Present Days Punjab