Immigration as Tree rings

[tomcat]

...watch the US grow over time through immigration: Animation: 200 Years of U.S. Immigration as Tree Rings

[Norton]

Interesting. My family are immigrants. Moved to US in the 50s.

[tomcat]

Interesting. My family are immigrants. Moved to US in the 50s.

...all American families come from somewhere else: across the Alaskan land bridge, sailing into the ports, wetbacking across the Rio Grande...it's a vibrant and volatile mix in the gene pool: everybody having sex with everybody else and only evangelicals objecting...

[Dragonfly]

American are invaders, so yes it was built on immigration