Life expectancy in 1776 america S. Web. . May 25, 2016 · Back in the post-Colonial day, the average life expectancy was around 34 ½ years of age, compared with 78 years of age in 2011. Oct 20, 2022 · A dramatic fall in life expectancy With rare exceptions, life expectancy has been on the rise in the US: it was 47 years in 1900, 68 years in 1950, and by 2019 it had risen to nearly 79 years. Best Answer. ) But in some ways, things weren’t that different. .