I dislike the term "invented" in contexts like this. Surely it's more accurate to say some Canadian guy popularized pineapple on pizza. I just really doubt that no one on earth ever put pineapple on a pizza before 1962.

Even the Wikipedia article goes on to say

In 1957, a "Hawaiian Pizza" containing pineapple, papaya, and chopped green pepper, but not ham or bacon, appeared in Portland, Oregon.[12][13]

I don't get why everyone is so obsessed with pineapple on pizza. I like it, not enough to order it but still.

The italians look down on us for putting garlic in the sauce by the way, they are disgusted and chagrined at it.

The thing is, garlic in processed food and pizza joints is added to disguise low quality ingredients, same reason they load the holy trinity of fat salt and sugar into everything. So the I-tie's are not wrong. They know food you have to give them that.