February 15

Statehood Day, celebrated on February 15 in Serbia, honors the First Serbian Uprising against Ottoman rule in 1804 and the adoption of the first modern Serbian Constitution in 1835. The holiday reflects on national origins, symbolized by leader Karađorđe Petrović and the founding of the modern Serbian state. Official ceremonies include military parades, laying wreaths at monuments, and cultural performances across Belgrade and other cities. Schools organize lessons on Serbian history, and museums offer special exhibitions on the events of the early 19th century. The day reinforces national pride and the enduring values of freedom and governance.

King Oswiu of Northumbria (c. 612–670) ruled from 642 until his death on 15 February 670. His reign was marked by the consolidation of Northumbrian power and the promotion of Christianity, notably through convening the Synod of Whitby in 664 which aligned English practice with Roman customs. Oswiu’s political acumen and religious patronage laid foundations for a unified English Church. History enthusiasts commemorate his death anniversary with scholarly lectures, reenactments, and church services reflecting on his legacy in shaping early medieval Britain.