Ottoman forces under Sultan Murad I clashed with a Serbian-led coalition on the Field of Blackbirds, a battle that reshaped the Balkans for centuries.

Ottoman forces under Sultan Murad I clashed with a Serbian-led coalition at Kosovo Polje, a bloody stalemate that opened the Balkans to centuries of Ottoman rule.

The dried blood of Saint Gennaro is recorded liquefying for the first time in Naples, beginning a ritual repeated for over 600 years.