Roukema proposes that Nova did discover Ascension island on his return voyage on May 5, 1502 (Ascension Day). However, only Correia suggests that Nova stopped in Brazil, so Roukema's theory rests on conflicting chronicles. Nonetheless, Roukema agrees with Barros and Góis in that Nova discovered some island on his outgoing journey, conjecturing that he actually discovered the Tristan da Cunha island group in the South Atlantic. The Cantino planisphere depicts the so-called Ascension Island as multiple islands. Additionally, the one-day difference between Ascension Day (May 20) and St. Helen's Day (May 21) may be the source of confusion of the names. Thus Roukema asserts that Nova discovered and reported the Tristan da Cunha group on the outgoing voyage on May 21, 1501, calling it "Saint Helena", and Ascension island on the return voyage on May 5, 1502, calling it "Ascension Island". However, because of the dates, the two islands were conflated, and the inconsistently used name "Saint Helena" misled Barros and Góis. Nova was in India in December, and there is no reconciliation of the timing with the liturgical calendar; therefore, Livermore contends that the identification "Conception Island" was a mistake. He also notes that Thomé Lopes could not have known the name "Ascension Island" in July 1503 because his ship left Lisbon before Nova returned. A possible resolution to the latter issue, as Lopes writes, is that the Fourth Armada met the outgoing ships of the Fifth Armada near the Cape of Good Hope in July 1503. Accepting the theories of Roukema, Livermore, and other similarly thinking historians leaves doubt about the actual discovery of Saint Helena. Many cite the account of Estêvão da Gama, Vasco da Gama's cousin, on the fleet of the Fourth Armada, which was returning in early 1503. However, the eyewitness account of Thomé Lopes indicates that he landed on Saint Helena on July 30, 1503. Lopes writes that on St. Helen's day (May 21, 1503), almost all the ships of the Fourth Armada, including Estêvão da Gama's, were stuck on Mozambique Island with severe sailing problems. Vasco de Gama ordered ships to depart in small groups as they were repaired. Lopes departed Mozambique on June 16 with three ships, noting an anonymous Flemish sailor, who also confirms landing on a South Atlantic island on June 30 in an account. Two of the three ships that Lopes describes had gone to India in 1502 as