>>42481843
Manehattan wasn't all that bad in that regard. They had high-rises and horse-drawn taxi cabs (granted, not bright yellow ones, that's a lazy ponification of a modern trope) around the early 20th century, which is where my tech level headcanon roughly sits. The only part of it that's undeniably modern-day are the big, glass-walled skyscrapers in the background. It wasn't great, but it wasn't bad enough to set alarm bells off.