Firuz Shah Tughlaq in the context of "Hisar (city)"

The pillars of Ashoka are a series of monolithic columns dispersed throughout the Indian subcontinent, erected—or at least inscribed with edicts—by the 3rd Mauryan Emperor Ashoka the Great, who reigned from c. 268 to 232 BC. Ashoka used the expression Dhaṃma thaṃbhā (Dharma stambha), i.e. "pillars of the Dharma" to describe his own pillars. These pillars constitute important monuments of the architecture of India, most of them exhibiting the characteristic Mauryan polish. Twenty of the pillars erected by Ashoka still survive, including those with inscriptions of his edicts. Only a few with animal capitals survive of which seven complete specimens are known. Two pillars were relocated by Firuz Shah Tughlaq to Delhi. Several pillars were relocated later by Mughal Empire rulers, the animal capitals being removed. Averaging between 12 and 15 m (40 and 50 ft) in height, and weighing up to 50 tons each, the pillars were dragged, sometimes hundreds of miles, to where they were erected.

The pillars of Ashoka are among the earliest known stone sculptural remains from India. Only another pillar fragment, the Pataliputra capital, is possibly from a slightly earlier date. It is thought that before the 3rd century BC, wood rather than stone was used as the main material for Indian architectural constructions, and that stone may have been adopted following interaction with the Persians and the Greeks. A graphic representation of the Lion Capital of Ashoka from the column there was adopted as the official State Emblem of India in 1950.

The Qutb Minar, also spelled Qutub Minar and Qutab Minar, is a minaret and victory tower, built during the Delhi sultanate, and comprising the Qutb complex, a UNESCO World Heritage Site in Mehrauli, South Delhi, India. It was mostly built between 1199 and 1220, contains 399 steps, and is one of the most-frequented heritage spots in the city. After defeating Prithviraj Chauhan, the last Hindu ruler of Delhi before the Ghurid conquest of the region, Qutab-ud-din Aibak initiated the construction of the victory tower, but only managed to finish the first level. It was to mark the beginning of Islamic rule in the region. Successive dynasties of the Delhi Sultanate continued the construction, and, in 1368, Firuz Shah Tughlaq rebuilt the top parts and added a cupola.

It can be compared to the 62-metre all-brick Minaret of Jam in Afghanistan, of c. 1190, which was constructed a decade or so before the probable start of the Delhi tower. The surfaces of both are elaborately decorated with inscriptions and geometric patterns. The Qutb Minar has a shaft that is fluted with "superb stalactite bracketing under the balconies" at the top of each stage. In general, minarets were slow to be used in India and are often detached from the main mosque where they exist.

Khizr Khan (1361 – 20 May 1421) was the Sultan of Delhi from 1414 to 1421. He was the founder of the Sayyid dynasty, the fourth ruling dynasty of the Delhi sultanate, in northern India soon after the invasion of Timur and the fall of the Tughlaq dynasty.Khizr Khan was Governor of Multan under the Tughlaq ruler, Firuz Shah Tughlaq, and was known to be an able administrator. He did not take up any royal title due to fear of invasion by Amir Timur (better known historically as Tamerlane) and contended himself with the titles of Rayat-i-Ala (Sublime Banners) and Masnad-i-Aali or (Most High Post). During his reign, coins were continued to be struck in the name of previous Tughlaq rulers. After his death on 20 May 1421, he was succeeded by his son Mubarak Khan, who took the title of Muizz-ud-Din Mubarak Shah.