Flag of Hawaii in command of the H.M.S. Discovery. During the Visit Vancouver met with Kamehameha I and presented him with a Red Ensign. At this time Ireland was not part of a united kingdom which meant the union jack did not contain Saint Patrick's Cross. This version of the Red Ensign, as well as the current version which added the cross in 1801, was the unofficial flag of the Kingdom of Hawaii until 1816. An adviser to Kamehameha noted that the Union Flag could draw Hawaii into international conflict, as his kingdom could be seen as an ally of the United Kingdom,
Union Jack suited to one of Harmsworth’s [a leading British newspaper owner] cheap Imperialist productions." More recently, Reed's "Nautical Almanac" (1990 edition) unambiguously stated: "The Union Flag, frequently but incorrectly referred to as the Union Jack, ..." and later: "8. The Jack – A small flag worn on a jackstaff on the stem of Naval Vessels. The Royal Navy wears the Union Flag ... This is the only occasion when it correct to describe the flag as the Union Jack". However, this assertion does not appear in any Reed's "Nautical Almanac" since 1993. In the 2016 Reeds Nautical Almanac the only entry