On 23 August 1976, the Bank of Botswana introduced notes in denominations of 1, 2, 5, and 10 pula; a 20-pula note followed on 16 February 1978. The 1- and 2-pula notes were replaced by coins in 1991 and 1994, whilst the first 50- and 100-pula notes were introduced on 29 May 1990 and 23 August 1993, respectively. The 5-pula note was replaced by a coin in 2000. The original 1-, 2- and 5-pula banknotes were demonetized on 1 July 2011.