A wiki called Mémoire du Québec has some timelines of Montreal history:
1535-1900,
1900-1930,
1930-1980 and
1980 to the present. The wiki's not well categorized or cross-linked, so if you want to find other topics you have to dig around. Also, note that – unlike most wikis – this one's nailed down with copyright and closed to editing.
posted at 12:30