1 Rouble Battle of Blue Waters

The Battle of Blue Waters, fought in 1362, saw Lithuanian forces under Grand Duke Algirdas defeat a coalition of Mongol-Tatar princes, effectively ending Golden Horde control over much of the western steppe and opening the Dnieper basin to Lithuanian expansion. For Belarus specifically, this victory is foundational — it established the Grand Duchy of Lithuania as the dominant power across territories that would later form the Belarusian heartland.

Belarus has issued commemorative roubles aggressively since the 1990s, and the KM#735 reference places this squarely within a long series of historical-military issues that the National Bank has used to anchor a national identity distinct from both Russian and Soviet historical framing.