The first mail to be carried over the Atlantic and other firsts on the east coast of Canada

The first mail to be carried over the Atlantic originated from St. John’s, Newfoundland. Due to their proximity to Europe, Newfoundland and Cape Breton contributed to a number of firsts in communications in the early part of the 20th century. That part of Canada (I am from Cape Breton) is known for its beauty, its hospitality, and its culture, to name a few attributes. It should also be known for creating technological history as well.
Letters of Note: The first mail to be carried over the Atlantic