Every day has history. 4th December is a proud moment of Indian Navy associated with history. Navy Day is celebrated across the country on this day. On this day in 1971, the Indian Navy launched Operation Trident in the war against Pakistan. National Navy Day is celebrated on this day as its anniversary.
NASA is involved in today's history. America's Space Center launched the Mars Pathfinder mission on December 4, 1996. From this day, NASA started the Mars mission strategy. NASA started research on whether water exists on Mars, whether any animals live there.
The history of London also coincides with the 4th of December. On this day in 1952, the capital of England was filled with smoke. This smoke causes respiratory problems. 4000 Londoners died in the accident. This phenomenon is known in history as London smog.
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