John Adam Ryder
American ichthyologist and embryologist · United States · Lived 1852 to 1895 · aged 43
John Adam Ryder is read in 4 languages.
Counted to August 19, 2026, not since.
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
Something wrong?John Adam Ryder, was an American zoologist and embryologist. He worked for the United States Fish Commission from 1880 to 1886 and a Professor of Comparative Embryology at the University of Pennsylvania from 1886 to 1895.
About this person
Country
United States
Status
deceased
Dates
Lived 1852 to 1895 · aged 43
Fame.am measures public visibility signals. It does not measure human value, talent, morality, or credibility.