Death Cities of 18XX-The Ugly Truth of Founding - Lucius Aurelian

The cities of the 1800s seemed to grow rapidly from nothing in the 1800s especially from the official history of the United States. What is the true story behind these cities? These studies focus on evidence from all perspectives indicating what really happened from the 1800s through the present showing signs a reset occurred:

-What are the signs these cities were abandoned?
-What infrastructure and technology were salvaged?
-What is the true sequence of events behind the development of these cities?
-Were city disasters what we understood them to be?
-How did the population grow so quickly and what role did infant incubators play in this?
-Are there any remains of the previous civilization's population in these cities?

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Timestamps:

00:00:00 New York-Great Harbor/First City of the Reset
01:00:27 Coney Island-Salvaged Technology/Repopulation Plan?
01:45:04 Denver-Expansion to the Mountains/Salvaged Materials and Old-World Mines

https://www.youtube.com/watch?v=PPCXf9wJRpk