Today in History - 15 April

1738 – Serse, an Italian opera by George Frideric Handel receives its premiere performance in London, England.
1941 – In the Belfast Blitz, two-hundred bombers of the German Luftwaffe attack Belfast, killing around one thousand people.
2014 – In the worst massacre of the South Sudanese Civil War, at least 200 civilians were gunned down after seeking refuge in houses of worship as well as hospitals.