It is a rivalry that defies description.
The animosity between the Dodgers and the Giants can’t technically be described as having started as an intracity squabble. When they first played each other in 1889, the Giants hailed from Manhattan, while the Dodgers (known as the Bridegrooms at the time) were based in Brooklyn, which wouldn’t become part of New York City for another nine years.
A subway series? No, that 1889 championship between the clubs was 15 years before New York City’s subway existed. To put things in (ridiculous) perspective, they had already played each other 757 times when sliced bread was invented in 1928.