Ordnance Survey
Media From /6/1791
Charles Close Society gives the history of OS Maps.
Subject
This section lists the memorials where the subject on this page is commemorated:
Ordnance Survey
Information Commemorated at
General Roy's cannon - south
The cannon was installed in 1791 by Mudge. The plaque came later in 1926. Fr...
Major-General William Roy
Greater London Council Major-General William Roy, 1726 - 1790, founder of th...
Information Other Subjects
First traffic lights in world
Less than a month after the lights were installed the lamp blew up, seriously...
First Electric Telegraph
Telegraphic messages were first sent successfully by Sir Francis Ronalds usin...
