From Aleteia:
The feast of the Presentation of Mary in the Temple commemorates the day on which (according to an extra-biblical tradition) Mary’s parents, Anne and Joachim, entrusted her to the priests and Levites in the Temple to be raised in the Lord’s service.
On this date, Venice commemorates an episode of the plague, which occurred in 1630 and claimed 12,000 victims in the month of November alone. [temporary internet glitch: please note that some have issue when click back; ignore flash screens that say “continue reading”]