July 18, 1980: India launches 1st indigenous satellite

On July 18, 1980, India launched its first satellite into orbit. This made India the seventh nation to launch an indigenously built satellite.

The Rohini RS-1 satellite lifted off from the Satish Dhawan Space Center at 8 a.m. local time. It was a small, experimental satellite weighing only about 77 lbs. (35 kilograms), and its primary purpose was to test out their new Satellite Launch Vehicle, or SLV-3 rocket.

This was a monumental mission for the Indian Space Research Organization, not just because they launched their own satellite, but also because they successfully launched the SLV-3 for the very first time.

Source: https://www.space.com/39251-on-this-day-in-space.html