Revolutions of 1848 in the Austrian Empire of the Serbs in Austrian Empire was held between 1 and 3 May 1848 in Sremski Karlovci, during which the Serbs proclaimed autonomous Habsburg crownland of Serbian Vojvodina. The war started, leading to clashes as such in Srbobran, where on July 14, 1848, the first siege of the town by Hungarian forces began under Baron Fülöp Berchtold. The army was forced to retreat due to a strong Serbian defense. With war raging on three fronts (against Romanians and Serbs in Banat and Bačka, and Romanians in Transylvania), Hungarian radicals in Pest saw this as an opportunity. Parliament made concessions to
Year of the Elephant Empire overthrew the Aksumite-affiliated rulers in Yemen around 570. The year is also recorded as that of the birth of ‘Ammar ibn Yasir. According to early Islamic historians such as Ibn Ishaq, in honor of his ally, Negus Abraha built a great church at Sana'a known as "al-Qullays", a loanword borrowed from "church". Al-Qullays gained widespread fame, even gaining the notice of the Byzantine Empire. The pagan Arab people of the time had their own center of religious worship and pilgrimage in Mecca, the Kaaba. Abraha attempted to divert their pilgrimage to al-Qullays and appointed a man named Muhammad ibn