A 16-year-old composer arrived at Vienna on 7 April 1787 newly. He was already acquainted with Mozart 's music by all accounts, and was excited to meet him. It's said he was playing music with him and he also had some lessons from him, probably. the name of the young composer was Ludwig van Beethoven.
On April 7, Chiang and several other KMT leaders held a meeting, during which they proposed that Communist activities were socially and economically disruptive and had to be undone for the Nationalist revolution to proceed.
On 7 April 1964, IBM announced the first computer system family, the IBM System/360. It spanned the complete range of commercial and scientific applications from large to small, allowing companies to upgrade to models with greater computing capability without having to rewrite their applications.
On 7 April, three North Vietnamese divisions attacked Xuân Lộc, 40 miles (64 km) east of Saigon. For two bloody weeks, severe fighting raged as the ARVN defenders made a last stand to try to block the North Vietnamese advance.
On April 7, 1989, Soviet troops and armored personnel carriers were sent to Tbilisi after more than 100,000 people protested in front of Communist Party headquarters with banners calling for Georgia to secede from the Soviet Union and for Abkhazia to be fully integrated into Georgia.
On 7 April, as the genocide started, RPF (the Rwandan Patriotic Front) commander Paul Kagame warned the crisis committee and UNAMIR that he would resume the civil war if the killing did not stop.
Following the fall of Grozny, the Russian government slowly but systematically expanded its control over the lowland areas and then into the mountains. In what was dubbed the worst massacre in the war, the OMON and other federal forces killed at least 103 civilians while seizing the border village of Samashki on 7 April (several hundred more were detained and beaten or otherwise tortured).