It happened in Canada: This series on the revolutionaries, luminaries and criminals who have visited the Great White North, was originally published in 2014

In a 1967 Massey lecture — his only address to a Canadian audience — Martin Luther King had praised Canada as “not merely a neighbour to negroes.”

The civil rights leader explained that in 19th century negro spirituals, American slaves had often sung of journeying to “heaven.” But the slaves were not singing about the hereafter; they were relaying coded instructions for an escape to freedom.