The Olympian has this entry for the history of June 30:
In 1859, French acrobat Blondin (born Jean Francois Gravelet) walked a tightrope above the gorge of Niagara Falls as thousands of spectators watched.
All things Niagara Falls tourism…
The Olympian has this entry for the history of June 30:
In 1859, French acrobat Blondin (born Jean Francois Gravelet) walked a tightrope above the gorge of Niagara Falls as thousands of spectators watched.