200 Years of American Immigration (Via Keith Ewing’s FB post)

https://www.citylab.com/design/2018/12/american-history-immigration-data-dendrochronology/578125/

TANVI MISRA DEC 17, 2018

Northeastern University’s Pedro Cruz, John Wihbey, Avni Ghael, and Felipe Shibuya have created a striking visualization

In science, the technique of studying climatic and ecological change over time via tree rings is known as dendrochronology.