Mudukudumi Peruvaludi (also known as Mudukudumi) is traditionally credited with establishing the first Sangam (academy) in Madurai during the Pandya period.

Tamil Nadu was a crucial hub for maritime trade routes connecting to Southeast Asia, Rome, and other regions. The spice trade was particularly important, with pepper and other spices being major exports.

The Chola administrative system divided territories into Valanad (districts), Nadus (subdivisions), and Kottaram (villages), with a sophisticated bureaucratic structure.

The Aravankadu Agreement was a trade treaty between the British East India Company and the Nawab of Arcot, establishing British commercial presence in Tamil Nadu.

The Madras Corporation (now Chennai Corporation) was the first municipal corporation established in Tamil Nadu in 1688 by the British East India Company.

The Pallavas pioneered and refined the Dravidian architectural style, characterized by gopurams and intricate stone carvings, which became foundational to South Indian temple design.

The Sundara Chola inscription documents the reign and military achievements of Sundara Chola, contributing to historical knowledge of the Chola administration.

The CMISSE scheme was implemented in 2019 to provide free educational support and materials to school students in Tamil Nadu.

Tamil Nadu accounts for approximately 45% of India's textile exports, making it the textile hub of India with major clusters in Tiruppur and Salem.

Narasimhavarman I (Mamalla) established Pallava naval power and expanded maritime trade, as evident from various inscriptions and Tamil literary sources.