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GoGaslightYerself t1_j4q8hdg wrote

Reply to comment by ClamatoDiver in TIL The oldest known map of New York City, the Manatus Map, is lost; however, two 17th century copies of the map exist with slight differences. by wil540_

I also always heard that the skyline of NYC echoed the bedrock below -- with tall buildings built where the bedrock was near the surface, and shorter buildings built where the bedrock was deeper and harder to access without caissons -- but more recently I've read that this is a myth that is largely untrue...

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ClamatoDiver t1_j4qcc97 wrote

I'm unaware of that, but I've been fortunate enough to have touched the bare bedrock that was there before the section of the Second Ave line north of 63rd and Lex was finished.

That's listed as 155 ft deep.

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GoGaslightYerself t1_j4qrqzh wrote

Lots of old history on the island. It's wild to imagine there once being farmland on Manhattan!

https://www.businessinsider.com/manhattan-nyc-farmland-photos-2017-6?op=1

So much has changed...my grandfather had his office in Manhattan, and my Dad said that when he was a kid, he used to take his 22 rifle with him on city buses to get from his home in north Jersey to a shooting range in Manhattan, and he said nobody really batted an eye ... can you imagine that happening today?

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