Literature & others...

• Books : 

• Silappadikaram - By poet Ilango - 1800 yrs ago (Tamil)
• Manimekalai - by Satanar - 1400 yrs ago
• Aryabhatiyam - Aryabhata (on Eclipses)
• Zoroaster - Iranian Prophet - Book - Avesta
• Harshvardhana's Biography - Harshacharita (Sansrit) - by Banbhatta
• Kalidasa - Abhijnana Shakuntalam - story of "King Dushyanta & Shakuntala"

• Vedas :

• Rigveda, Samaveda, Yajurveda, Atharvaveda
• Regveda - oldest 3500 yrs ago
• Charakha Samhita - by Charakha - on Medicine - 360 Bones - about 2000 yrs ago.

•  Era / Ages And Sites....

• Palaeolithic (Old Stone) - Bhimbetika (MP), Hunsgi (KN), Kurnool (AP)
• Neolithic - Mehgarh (Pak.), Burzahom (JK), Chirand (Bihar), Koldihuo (MP), Mahagara (UP), Daojali Hading (Tri.), Hallur (AP), Paiyampalli (AP)..
• Megalithic - Brahmgiri (TN), Adichamallur (AP)
• Early - Inamgaon (KN)
•  
•