The lev is the official currency of Bulgaria. The official currency symbol: лв. The term “lev” meant “lion” in old Bulgarian; the contemporary word for “lion” is luv. The name “stotinka” is derived from the word “sto”, which means “a hundred.” Four lev have been introduced in Bulgaria, the first was adopted in 1881, and the last, in current use, was adopted in 1999. During the adoption of the latter lev, and after a redenomination process, banknotes were introduced in the denominations of 1, 2, 5, 10, 20, and 50 leva, followed by the 100 leva notes in 2003. The 1 and 2 lev notes were eventually phased out of circulation and replaced with coins of comparable value.

The 50,000 Bulgarian leva note front design features the sculptures of St. Cyril (826 – 869 and St. Methodius (815 – 885) in front of the National Library, located in Sofia (Capital city). Cyril and Methodius were two brothers and Byzantine Christian theologians and missionaries, known as the “Apostles to the Slavs” for evangelizing the slaves.

The reverse of the note presents a facsimile of the ‘’Historiae Sclavo-Bulgaricus’’. The lettering of the note is presented in the Bulgarian language. This note is part of the 1997 series, and its color is purple on a multicolor underprint.