Just enlightening the masses -- Sam Panopoulos, a Greek-born Canadian, created the first Hawaiian pizza at the Satellite Restaurant in Chatham-Kent, Ontario, Canada, in 1962. Inspired in part by his experience preparing Chinese dishes which commonly mix sweet and sour flavors, Panopoulos experimented with adding pineapple, ham, bacon, and other toppings. These additions were not initially very popular. But at least he tried -- AND made history.
As for anchovies -- bleech -- the only place they belong is in Caesar salad as far as I am concerned. When Neapolitan pizza came onto the scene in the 1700s, it was only natural to include preserved fish in the process. Since anchovies were plentiful, affordable, shelf stable – and considered delicious – they became a ubiquitous pizza topping in Naples.