What happend on 21st December

20.12
22.12
1872

HMS Challenger sails from Portsmouth on the 4 year scientific expedition that would lay the foundation for the science of oceanography

1861

Lord Lyons, the British minister to the United States, meets with United States Secretary of State William Seward concerning Confederate envoys arrested by the United States Navy in order to prevent war between the United States and the United Kingdom.

1861

The Medal of Honor first authorized

1780

Great Britain declares war on The Netherlands in response to the Dutch joining the League of Armed Neutrality and for assisting French and American forces during the American Revolution.

1620

The Pilgrims land on what is now known as Plymouth Rock