Existing comment:
The Newly Formed State of Colorado
Published by the firm of G. W. and C. B. Colton in 1878, on the 102nd anniversary of the United States' independence from Britain, this striking map shows the newly formed state of Colorado. Major cities, counties, townships, roads, rivers, and railroad lines are shown. Interestingly, the map shows two prime meridians: one measured west from Washington, D.C., and a second measured west from Greenwich, England.
In 1884, six years after this map was published, an international conference held in Washington, D.C., was convened to formally establish a single international prime meridian to be used worldwide and increase the accuracy of nautical charts, time zones, and railway timetables. |