Retrograde in History · 1890
1890 United States Census
On June 2, 1890, Mercury was mid-loop — retrograde in Gemini, tracing backward through 6°56′ of the sign.
WhenJune 2, 1890♊︎Gemini 6°56′Rx windowMay 18 – Jun 11, 1890
The record
On June 2, 1890, the United States conducted its 11th national census, which recorded a resident population of 62,979,766 and marked the first time tabulating machines were used.
Coincidence, not causation: the date is real and ephemeris-based, but a retrograde window is observed, never blamed. For entertainment, not navigation.