So, apparently, today is Quebec City’s actual 400th birthday:

Samuel de Champlain — Britannica Online Encyclopedia

The whole year is designated as «Le 400è de Québec» so it’s interesting to have a precise date.

Obviously, we could quibble as to the significance of any given date. And there’s a lot to say about the negative impact of colonialism. So, the title refers to Bob Marley as much as to Quebec City’s celebration.