PrehistorySome traces of habitation of human, nearly 2 million years ago in the foothills of Himachal Pradesh, have been found. Bangana valley of Kangra, Sirsa valley of Nalagarh and Markanda valley of Sirmour were the places where prehistoric man used to live. The foothills of the state were inhabited by people from Indus valley civilization which flourished between the period of 2250 and 1750 BC.
Medieval historyIn about 883 AD Shankar Verma, the ruler of Kashmir exercised his influence over Himachal Pradesh. The region also witnessed the invasion of Mahmud Ghazni in 1009 AD, who looted the wealth from the temples in the North India. In 1043 AD the Rajputs ruled over the territory.
The small kingdom enjoyed a large degree of independence till the eve of the Muslim invasions in northern India. The states of the Himalaya were devastated by Muslim invaders a number of times. Mahmud Ghaznavi conquered Kangra at the beginning of the 10th century. Timur and Sikander Lodhi also marched through the lower parts of the state and captured a number of forts.
The Gorkhas, a martial tribe in Nepal in 1768, consolidated their power and began to expand their territory. The Gurkhas marched in from Nepal and captured the area of Sirmour and Shimla. Under the leadership of Bada Kaji Amar Singh Thapa, managed to defeat Sansar Chand, the ruler of kangra, in 1806. However Gorkhas could not capture Kangra fort which came under Maharaja Ranjit Singh katoch in 1809.
However,Raja Ram Singh, Raja of Siba State re-capture the Siba fort after defeating the army of Maharaja Ranjit Singh. After the defeat, the Gorkhas also began to expand towards the south of the state.
This led to the Anglo-Gorkha war. They came into direct conflict with the British along the tarai belt after which the British expelled them from the provinces of Satluj. In early 19th century the British annexed the areas of Shimla after the Gurkha War of 181516. Himachal became a centrally administered territory in 1948 with the integration of 31 hill provinces.
British periodThe revolt of 1857 resulted due to political, social, economic, religious and military grievances against the Britishers. People of the hill provinces were not politically as active as the people in other parts of the country. The people as well as rulers remained more or less inactive with the exception of Bushahr. Some of them even helped the British government during the revolt. The rulers of Chamba, Bilaspur, Bhagal and Dhami were among them.
After Queen Victoria's proclamation of 1858 the British territories in the hill came under British Crown . The provinces of Chamba, Mandi and Bilaspur made good progress in many areas during that period. In World War I, almost all rulers of the hill states contributed and helped the Britishers both in the form of men and materials.
Having a cool climate, Shimla was made the summer capital by the British Govt. Shimla had made great progress under british rule in terms of infrastructure and administration. Shimla -Kalka railway track and Indian Institute of Advanced studies are some examples. First Hydropower project was built by the britishers at Shanan, Joginder Nagar.
Class 'G' State:
State came into existence on 15th April, 1948 as the Chief Commissioner's Province of H.P. by integration of 28 princely states with four Districts Chamba, Mandi, Sirmour and Mahasu. On 1951 state was declared as Class 'G' state. Himachal became a part C state on 26 January 1950 with the implementation of the Constitution of India and the Lt. Governor was appointed. Legislative Assembly was elected in 1952 and Dr Yashwant Singh Parmar was elected as the first Chief Minister of the state.