1-Bhaskaracharya, the great astronomer and mathematician of ancient India, was the first person to calculate the time taken by the earth to orbit the sun.
2-Chess was a popular game in ancient India.
3-The Indus valley civilization was one of the most advance civilizations in terms of town planning etc
4-The great physician of ancient India, Sushruta conducted complicated surgeries like cesareans, cataract, artificial limbs, fractures, stones, plastic surgery and brain surgery.
5-According to Greek philosophers slavery did not exist in ancient India.
6-Akbar was born on 15th October 1542, to Emperor Humayun and his recently wedded wife, Hamida Banu Begum.
7-The Vedic Civilization flourished between the 1500 BC and 500 BC on the Indo-Gangetic Plains of the Indian subcontinent
8-The oldest text of the Vedic Period, Rig Veda has many elements that are common with the Indo-Iranian texts, both in language and in content
9-Shah Jahan was born as Prince Khurram on 5th January 1592, to Emperor Jahangir and his second wife, Jagat Gosini (a Rajput Princess).
10-Shah Jahan, also known as Shahbuddin Mohammed Shah Jahan was the fifth Mughal ruler, after Babur, Humayun, Akbar and Jahangir.
11-Shah Jahan is also the founder of the modern city of Delhi. During that time, the city was known as Shahjahanabad.
12-Asoka was born in 304 BC, to Mauryan Emperor Bindusara and a relatively lower ranked queen, Dharma.
13- The Battle of Kalinga changed King Asoka completely.
From a power hungry emperor, he turned into a Buddhist follower and started preaching the principles of Buddhism throughout the world.
14-The battle of Kalinga (now Orissa) became a turning point in the life of ‘Asoka the Great’.
15-Chhatrapati Shivaji was born on 19th February 1630, to Sahaji and his wife, Jijabai, in the Shivneri Fort, situated almost 60 km to the north of Pune.
16- was formally crowned as Chatrapati (meaning the Chief, Head or King of Kshatriyas) in June 1674 at the Raigad fort.
17-Shivaji breathed his last on 3rd April 1680 in the Raigad fort, the capital for Maratha Empire.
18-As per the Greek and Latin accounts, King Chandragupta Maurya is known as Sandracottos or Andracottus
19-Chandragupta Maurya’s son Bindusara succeeded him to the throne. He gave birth to Asoka, who went on to become one of the most powerful kings of the Indian subcontinent.
20-Harsha Vardhana wrote three Sanskrit plays, namely Nagananda, Ratnavali and Priyadarsika.