In 1915, we had WW1 in full swing
In 1815 we had Waterloo
In 1715 we had the Jacobite rebellion with Bonnie Prince Charlie.
I just realised this when I heard a woman at the Tourist Information speaking to a lady at Dilston Hall. Dilston was the home of the Earls of Derwentwater. The Earl was beheaded for his part in the Jacobite rebellion. It is why a lot of land in Haydon Bridge belongs to Greenwich Hospital. It became part of the Crown's lands as a result of the rebellion.
All three events really changed society. As a result of the Jacobite rebellion, many left Scotland and went to the US, primarily the Carolinas including some of my forebearers, Their sons and grandsons later took part in the American Revolution. The fighting was absolutely bitter in the Carolinas.