Early european explorers of North America
tried to time visits so that they arrived by Saint John
the Baptist's day (late June). This target was both practical (allowed exploration, plus a timely return) and was imbued with good luck. As a consequence, the original settlers named the first place of landing after this Saint. At one point there were three Saint John places in Eastern Canada
The too-many-Saint-Johns problem was partly behind the renaming business for P.E.I.
. If you're travelling in Eastern Canada, don't confuse St. John's
with Saint John
, unless you want trouble.