Question: When did the currencies of the country where Ancuabe is located first come into circulation?

full_context: Document 1: Coins of the Indian rupee: The move towards decimalization was afoot for over a century. However, it was in September, 1955 that the Indian Coinage Act was amended for the country to adopt a metric system for coinage. The Act came into force with effect from 1 April 1957, after which anna and pice denominations were demonetised. The rupee remained unchanged in value and nomenclature. It, however, was now divided into 100 'paisa' instead of 16 annas or 64 pice. Effective from 30 June 2011, all coins in denominations of 25 paisa and below were officially demonetized.
Document 2: Zimbabwean dollar: The first Zimbabwean dollar was introduced in 1980 and replaced the Rhodesian dollar at par. The initial ISO 4217 code was ZWD. At the time of its introduction, the Zimbabwean dollar was worth more than the US dollar in the official exchange market, with 1 ZWD = 1.47 USD, although this did not reflect the actual purchasing power it held. As a result, in both the official and parallel markets, the currency's value eroded rapidly over the years, and by July 2006, the parallel market value of the Zimbabwean dollar fell to Z $1,000,000 = GB £1.
Document 3: Balama: Balama is a town in Balama District of Cabo Delgado Province in northern Mozambique. It is the seat of the district.
Document 4: Homoine District: Homoine District is a district of Inhambane Province in south-east Mozambique. Its principal town is Vila de Homoine. The district is located at the east of the province, and borders with Morrumbene District in the north, Jangamo District in the southeast, Inharrime District in the south, Panda District in the west, and Funhalouro District in the northwest. In the east, the district is bounded by the Indian Ocean. The area of the district is . It has a population of 107.475 as of 2007.
Document 5: Mozambican metical: The metical (MZM) replaced the escudo at par on 16 June 1980. It was divided into 100 centavos. The metical underwent severe inflation. After the revaluation of the Romanian leu, the metical briefly became the least valued currency unit, at a value of about 24,500 meticais per USD, until the Zimbabwean dollar took the title in late August 2005.
Document 6: Cape Verdean escudo: After independence on 5 July 1975, notes were issued for 100, 500, and 1000 escudos on 1 July 1977. The next series of notes was introduced in 1989 and consisted of 100, 200, 500, 1000 and 2500 escudos.
Document 7: Spanish peseta: The peseta was replaced by the euro in 2002, following the establishment of the euro in 1999. The exchange rate was 1 euro = 166.386 pesetas.
Document 8: Macia: Macia is a small town in Gaza Province, Mozambique, and the seat of the Bilene Macia district. In 2008 its population was 25153.
Document 9: Luanda Municipality: The Municipality of Luanda is one of the seven municipalities that make up the province of Luanda, Angola, as per the new administrative division of the province (the others being Belas, Cazenga, Cacuaco, Viana, Icolo e Bengo and Quiçama). It covers roughly 116 km2 (2nd smallest in province) and includes Ilha do Capo. The population of 2,165,867 in 2014 Census, and projected to be 2,487,444 in 2018 per Instituto Nacional de Estatística, República de Angola.
Document 10: Magoé District: Magoé District is a district of Tete Province in western Mozambique. Its administrative center is the town of Mpheende. The district is located in the north of the province, and borders with Zumbo District in the north, Marávia District in the northeast, Cahora-Bassa District in the east, and with Zimbabwe in the south and in the west. The area of the district is . It has a population of 70,614 as of 2007.
Document 11: Ancuabe: Ancuabe is a town in eastern Mozambique in Ancuabe District, Cabo Delgado Province. It is the seat of the district. According to the 1997 census it has a population of 12,561.
Document 12: Mueda: Mueda is the largest town of the Makonde Plateau in northeastern Mozambique. It is the capital of the Mueda District in Cabo Delgado Province. It is the center of the culture of the Makondes, and the production of their ebony sculptures.
Document 13: Euro: The changeover period during which the former currencies' notes and coins were exchanged for those of the euro lasted about two months, until 28 February 2002. The official date on which the national currencies ceased to be legal tender varied from member state to member state. The earliest date was in Germany, where the mark officially ceased to be legal tender on 31 December 2001, though the exchange period lasted for two months more. Even after the old currencies ceased to be legal tender, they continued to be accepted by national central banks for periods ranging from several years to indefinitely (the latter for Austria, Germany, Ireland, Estonia and Latvia in banknotes and coins, and for Belgium, Luxembourg, Slovenia and Slovakia in banknotes only). The earliest coins to become non-convertible were the Portuguese escudos, which ceased to have monetary value after 31 December 2002, although banknotes remain exchangeable until 2022.
Document 14: Montepuez: Montepuez is the second largest city in the province of Cabo Delgado in Mozambique, after the provincial capital of Pemba.
Document 15: Cape Verdean escudo: In mid-1998 an agreement with Portugal established a pegged rate of 1 Portuguese escudo = 0.55 Cape Verdean escudo. Since the replacement of the Portuguese escudo with the euro, the Cape Verdean escudo has been pegged to the euro at a rate of 1 EUR = 110.265 CVE. This peg is supported by a credit facility from the Portuguese government.
ground_truth: 16 June 1980
sub_queries: Ancuabe >> country Answer: Mozambique
when did the currencies of Mozambique first come in circulation Answer: 16 June 1980