Barbie

 Happy birthday Barbie. (She made her debut at a toy fair on 9 March 1959). https://localhistories.org/a-history-of-dolls/

Toronto

 The great Canadian city of Toronto was incorporated on 6 March 1834 

Slaves in Anglo-Saxon Bristol

 I found this interesting article about slaves in Anglo-Saxon Bristol https://www.buildinghistory.org/bristol/saxonslaves.shtml 

Milton

 I made a video about the history of Milton, Portsmouth https://youtu.be/-XeKnhYW5AM

Chicago

 Chicago was incorporated as a city on 4 March 1837. Happy birthday Chicago. 

Telephone

 Alexander Graham Bell, inventor of the telephone was born on 3 March 1847 

19th Century Food

 Four years ago I made this video about food in the 19th century https://youtu.be/q97BiiNzwNU