In all 30,000 slaves fled to Canada, many with the help of the underground railroad - a secret network of free blacks and ...

For over 40 years, one of North America’s most important military facilities was 200 metres below the Canadian Shield “The Hole” is the local nickname for the NORAD North Bay Underground ...

The Underground Railroad ... Vigilance committees sprang up in the larger towns and cities of the North, most prominently in New York, Philadelphia, and Boston. In addition to soliciting money ...

While some slaves headed north with relatives of friends ... abolished slavery throughout its territories in 1833. Underground Railroad activity flourished in cities such as Rochester and Buffalo ...