It's the 40th anniversary of Concorde's maiden passenger flight.
In 1976 on the 21st of January Britain's supersonic Concorde took off on her maiden commercial flight bound for Bahrain.
The British Airways plane took off at about the same moment as an Air France Concorde which was inaugurating the first Paris-Rio de Janeiro supersonic service. Concorde retired in 2003.
Here are some of your memories...