Here are some one liners...
A Trail of Tears -- The Cherokee take one in the neck from the government and head for Oklahoma. A lot of them won't make it.
The Missouri Mormon War -- The Mormons take one in the neck and head for Illinois. Some of them won't make it either, but they will prosper there, for a little while.
The Pastry War -- A French pastry shop owner demands payment for damage done by Mexican officers. His demand spirals out of control and starts a war with France.
In Other News -- Queen Victoria, the National Weather Service and John Wilkes Booth.