b) “Before ‘Bloody Sunday’”
Bloody Sunday refers to the massacre of January 22nd, 1905 in St Petersburg, Russia. Unarmed demonstrators marching to present a petition to Tsar Nicholas II of Russia in the Winter Palace were attacked by the Imperial Guard.
The massacre on Bloody Sunday is thought to be the origin of the active phase of the Revolution of 1905.
Sectionalism refers to being loyal to a certain region in a country, but not to the country as a whole.
The North's goal was to invade the South to try to subdue their desire to secede, while the South's strategy was to defend their territory until the North gave up.