Cluedo was originally called ‘Murder!’ and was developed and patented in the UK by Birmingham-born Anthony E Pratt who sold his game to Waddingtons. The game was officially launched in 1949 and rebranded by Waddingtons as ‘Cluedo’ (a portmanteau of the words clue and ludo – ludo being the Latin for I play).
In the US Cluedo was licensed by Parker Brothers and underwent a slight name change to ‘Clue’.
Cluedo Video, 1988, France.
You can read more about the history of Cluedo at this great site dedicated to all things Cluedo cluedofan.com