Being the oldest and most effective original telegram, beacon towers are
the most important component of the defensive project on the Great
Wall. They are built continually to pass military messages. In ancient
times, if intruders approached, soldiers on the wall would create smoke
in the daytime and light a fire at night to warn their troops.
On December 24, 1814 the Treaty of Ghent was signed by British and American representative at Ghent, Belgium, ending the war of 1812. By terms of the treaty, all conquered territory was to be returned, and commission were planned to settle the boundary of the united States and canada
setting up natural monopolies.
