Trujillo, Peru well as the "Capital of Culture of Peru". It has sponsored numerous national and international cultural events, and has a lively arts community. Current festivals include the "National Marinera Festival", the Trujillo Spring Festival and the International Book Festival, which is one of the most important cultural events in the country. Trujillo is close to two major archeological sites of pre-Columbian monuments: Chan Chan, the largest adobe city in the ancient world, designated a World Heritage Site by UNESCO in 1986; and the temples of the Sun and Moon (the largest adobe pyramid in Peru). The city center contains many
Pre-Columbian era Oceania of several cultivated plant species native to South America, such as the bottle gourd ("Lagenaria siceraria") or sweet potato ("Ipomoea batatas"). Direct archaeological evidence for such pre-Columbian contacts and transport have not emerged. Similarities noted in names of edible roots in Maori and Ecuadorian languages ("kumari") and Melanesian and Chilean ("gaddu") have been inconclusive. A 2007 paper published in "PNAS" put forward DNA and archaeological evidence that domesticated chickens had been introduced into South America via Polynesia by late pre-Columbian times. These findings were challenged by a later study published in the same journal, that cast doubt on the