Nickel replaced silver in the 1 pataca in 1968. The first Timorese currency was the Portuguese Timorese pataca, introduced in 1894. The Macao pataca (MOP) is similarly linked to the Hong Kong dollar. Recently he received international attention as the trainer of the world-ranked Viva Pataca. In 1944, it introduced a 500 pataca note. The historical exchange rates between the pataca and the US dollar (USD) are given below. The bank discontinued the 25 pataca note in 1958. The 25 pataca note was discontinued after 1958. The next year it introduced 10 and 25 pataca notes. The Bank of China also issued a 100 pataca banknote to commemorate its centennial anniversary. Both the BNU and Banco da China introduced 20 pataca notes in 1996. Viva Pataca is also the nominees of the Most Popular Horse of the Year 2008/09. Viva Pataca started the 2008 year with the Hong Kong Stewards' Cup, running third. On August 8, 1988, BNU issued a 1000 pataca banknote, the highest value banknote yet. Viva Pataca finished the season with winning his 3rd Chater Cup title in four years.