Yes, I did know that. And so far as I know, only the Latin Church does that (unless as I said, the Maronites follow that Latin practice). It surprises me that the Latins show such respect for Sundays as the feast of the Resurrection, yet cavalierly violate the 20th canon of Nicea which prohibits kneeling on Sundays specifically because it is the feast of the Resurrection. :)
There’s no satisfying you. ;-)