Age codes include HY (hatching year), indicating a bird in the calendar year of its hatching; SY (second year), indicating a bird in its second calendar year (HY/SY indicates a bird in its first plumage cycle, being HY until 31 Dec and SY after 1 Jan); TY (third year), indicating a bird in its third calendar year; AHY (after-hatching year), ...
Leif erickson and the vikings were in fact the first to discover and settle on what is now called the united states of america. Christopher Columbus is given credit for discovering the New World, but was he really the first person to step foot in this new land.
Beginning in Montreal, Ben Carlin circumnavigated the world in a modified Ford GPA Jeep between 1950 and 1958, becoming the first person to circumnavigate the world by amphibious vehicle. David Kunst walked around the world between 20 June 1970 and 10 October 1974.