Although the square is one of the oldest developed parts of the city, dating back to 1693, the present-day configuration and dimensions of Place d’Armes correspond approximately to those of the layout begun in 1845 and completed in 1850. The great urban renewal begun in the 1950s also led to changes in Place d’Armes before the city undertook the final, most significant redevelopment of the Place in about 1960. Strangely, no documents relative to this layout seem to have survived in the City of Montréal archives. One of the salient features of the 1960s redevelopment was the raising of the Place by approximately 75 cm above the surrounding sidewalks and streets. Access is by low steps at the four corners. There is another, much wider, step o...