Tension has bubbled between Boston and New York since the 17th century, when the Puritans, who founded Boston, and the Dutch, who founded New York, squabbled over Long Island.

“We’re so small compared to New York, but we’re so powerful,” said Northeastern University historian Bill Fowler, acknowledging that Boston, with just over 600,000 residents, is smaller than the borough of Brooklyn. “On per capita basis, we’ve got you beat, it’s just that you’re bigger.”