On this day:

1526: First Battle of Panipat: Central Asian conqueror Babur defeats Sultan Ibrahim Lodi, establishing the Mughal Empire in India

1992: The first exoplanets are discovered

1997: I. K. Gujral sworn in as Prime Minister of India

Born on this day:

1864: Max Weber, German economist, sociologist

Gone on this day:

1910: Mark Twain, American author

1946: John Maynard Keynes, English economist