Muhammad bin Tughlaq built the fortress of Adilabad near Tughlaqabad.

Nizamuddin Auliya famously said 'Hanooz Dilli Dur Ast' (Delhi is yet far away) when threatened by Ghiyas-ud-din.

They ruled from 1320 to 1414 AD, the longest reigning dynasty of the Delhi Sultanate.

Nasir-ud-din Mahmud was the last major ruler of the Tughlaq dynasty during the Mongol invasion of 1398.

Timur invaded India in 1398, sacking Delhi and dealing a fatal blow to the Tughlaq dynasty.

Agra was founded by Sikandar Lodi. Firoz Shah founded Hisar, Firozabad, Fatehabad, and Jaunpur.

Since he built many canals using state money, he imposed an irrigation tax called Haqq-i-Sharb (10% of produce).

Khan-i-Jahan Maqbool, a Telugu Brahmin convert to Islam, was a highly capable Wazir who handled administration while Firoz was away.

Firoz Shah made the Iqta (land grant) system hereditary to please the nobles, which eventually weakened the central authority.

Futuhat-i-Firoz Shahi is a brief brochure written by the Sultan himself explaining his policies and religious adherence.