" and was conducted annually at Mu'a following the harvest season when all countries that were subject to the Tu'i Tonga must bring a gift for the gods, who was recognized as the Tu'i Tonga. Captain Cook witness an Inasi ceremony in 1777, in which he noticed a lot of foreigners in Tonga, especially the darker people that resembles African descend from Fiji, Solomon Islands and Vanuatu. The finest mats of Samoa ('ie toga) are incorrectly translated as "Tongan mats;" the correct meaning is "treasured cloth" ("ie" = cloth, "toga" = female goods, in opposition to "oloa" = male goods). Many fine mats came into the possession of the Tongan royal families through chiefly marriages with Samoan noblewomen, such as Tohu'ia the mother of Tu'i Kanokupolu Ngata who came from Safata, 'Upolu, Samoa. These mats, including the Maneafaingaa and Tasiaeafe, are considered the crown jewels of the current Tupou line (which is derived matrilineally from Samoa). The success of the Empire was largely based upon the Imperial Navy. The most common vessels were long-distance double-canoes fitted with triangular sails. The largest canoes of the Tongan kalia type could carry up to 100 men. The most notable of these were the Tongafuesia, Ākiheuho, the Lomipeau, and the Takaipōmana. It should be mentioned that the Takaipōmana was actually a Samoan kalia; according to Queen Salote and the Palace Records this was the Samoan double-canoe that brought Tohu'ia Limapō from Samoa to wed the Tu'i Ha'atakalaua. The large navy allowed for Tonga to become wealthy with large amounts of trade and tribute flowing into the Royal Treasury. The Tui Tonga decline began due to numerous wars and internal pressure. In the 13th or 14th century Samoa defeated Tu'i Tonga Talakaifaiki under the lead of the Malietoa family. In response the falefā was created as political advisors to the Empire. The falefā officials were initially successful in maintaining some hegemony over other subjected islands but increased dissatisfaction led to the assassination of several rulers in succession. The most notable were, Havea I (19th TT), Havea II (22nd TT), and Takalaua (23rd TT), who were all known for their tyrannical rule. In AD 1535, Takalaua was assassinated by two foreigners while swimming in the lagoon of Mu'a. His successor, Kauulufonua I pursued the killers all the way to Uvea, where he killed them. Because of so many assassination attempts on the Tu'i Tonga, Kauulufonua established