The current name was given in 1354 AD, as Hisar-e-Firoza by Firuz Shah Tughlaq, the Sultan of Delhi from 1351 to 1388.

[7] The kingdom of Hisar, with its capital at Agroha, possibly assisted Chandragupta Maurya (reign: 321–297 BCE) in his war against the Greeks.

[8] The kingdom was then included in the Mauryan Empire, as evidenced by the discovery of Ashokan pillars in the vicinity of the city.

[7] Hisar was founded in 1354 AD, as 'Hisar-e-Firoza' by Firoz Shah Tughlaq, who reigned over the Sultanate of Delhi from 1351 to 1388.

[8] In the battle of Panipat in 1526, Babur sent prince Humayun, who succeeded in defeating the army of Ibrahim Lodi.

[7] The region came under the rule of British East India Company in 1803 and remained a part until the Indian Rebellion of 1857 when Muhammad Azim and Rao Tula Ram conquered it away for a short period.

The company sent forces under General Van Cortlandt, who defeated Azim and Tula Ram on 16 November 1857.

[7] Between 1803 and 1879, the British constructed a 4,000-km-long Great Hedge of India, for levying the customs duty on salt and sugar, that ran through Hisar and Hansi.

[13] For their participation in First War of Independence, the Chaudharys and Lambardars of villages involved in the rebellion were deprived of their land and property.

[14] The city remained as a major centre of the Indian independence movement from the rebellion of 1857 until the independence, as many national leaders visited the city during the movement such as Lala Lajpat Rai in 1886,[15] Subhas Chandra Bose in 1938,[8] and Jawaharlal Nehru in 1946.

The region is part of the alluvial Ghaggar-Yamuna plain and its southern and western portions mark a gradual transition to the desert.

According to tectonic map, the district lies on Delhi-Lahore Ridge which is bounded by thrusts and no earthquake of any significance has originated in the zone in the past.

[20] The main characteristics of climate in Hisar are dryness, extremes of temperature, and scanty rainfall.

In Hisar, 11% of the population is under 6 years of age and the child sex ratio is 860 girls per thousand boys.

[54] Ghoomar is the primary folk dance performed by people during festivals and other occasions and Saang is the folk-theatre of the region.

[8] Classical Indian vocalist Jasraj and poet Vishnu Prabhakar belong to Hisar.

[55] Signs of pre-Harappan settlements have been found at Siswal and Lohari Ragho in Hisar district.

It is situated about 24 km from the city and was once the capital of king Agrasena, who is believed to have lived during the last stages of Dvapara Yuga in the Mahabharat era.

The city was also a major centre during the Mauryan period as Buddhist and Jain temples have also been revealed in the excavations.

[60] Firoz Shah Palace Complex is another prominent historical site located inside the city.

Delhi Sultanate era Firoz Shah Palace Complex and Pranpir Badshah tomb are located in the city.

[8] The O. P. Jindal Knowledge Centre, inaugurated in 2009 a museum, library, park and houses a 25-storied, 282-ft- high steel tower modeled on the Space Needle in Seattle.

[8] Jahaj Kothi Museum, named after George Thomas, is located inside Firoz Shah Palace Complex and maintained by the Archaeological Survey of India.

[77] Bharat Sanchar Nigam Limited (BSNL) provides landline and broadband services.

[78] Cell phone coverage is extensive, and the main service providers are Vodafone Essar, Airtel, BSNL, Reliance Communications, Idea Cellular and Tata Indicom.

[83] All the 290 villages of Hisar district are connected to the city through either public transport provided by Haryana Roadways or through private buses.

[8] The railway station is a part of Western Dedicated Rail Freight Corridor according to which the city is to be developed as an export-oriented industrial unit.

[89] In August 2012, the DGCA approved the Haryana state government's plan to develop the airport to operate domestic passenger services.

[20] Commercial and private pilot license training is provided by the Haryana Institute of Civil Aviation (HICA) from Hisar Airport built in 1965.

[29] Sports persons from Hisar include Manvinder Bisla in cricket, Saina Nehwal in badminton, Pinki Jangra in boxing and Manandeep Singh in football.