The Mamluks, led by Qutb-ud-din Aibak, established the Delhi Sultanate in 1206.

Qutb-ud-din Aibak, a former slave of Muhammad of Ghor, became the first Sultan of Delhi in 1206.

Iltutmish introduced the Iqta system, a land revenue and military assignment system, during his reign.

Alauddin Khalji, known for his military conquests and administrative reforms, ruled the Delhi Sultanate from 1296 to 1316.

Ghiyas-ud-din Tughlaq founded the Tughlaq dynasty in 1320.

Qutb-ud-din Aibak is credited with the construction of the Qutub Minar, a UNESCO World Heritage Site.

Alauddin Khalji implemented the concept of market control and price regulation to stabilize the economy.

Muhammad bin Tughlaq was a patron of literature and the arts, and his court attracted many scholars and artists.

Muhammad bin Tughlaq attempted to introduce a token currency made of copper and brass, but it failed due to widespread counterfeiting.

Muhammad bin Tughlaq shifted the capital of the Delhi Sultanate from Delhi to Daulatabad, but later moved it back to Delhi.

Firoz Shah Tughlaq constructed the Hauz Khas Complex, which includes a reservoir, a mosque, and a tomb.

Firoz Shah Tughlaq undertook extensive irrigation projects and constructed canals to improve agriculture.

Firoz Shah Tughlaq established madrasas (Islamic schools) and libraries to promote education.

Shah Jahan, a Mughal emperor, constructed the Red Fort in Delhi during his reign.

Firoz Shah Tughlaq was known for his patronage of Sufi saints and his efforts to promote religious harmony.