The United States won every pole vault competition from 1896 to 1968.
US
The elephant has the longest nostril.
Michael Phelps of the US was the top winner at the 2008 Beijing Olympics, winning a record 8 gold medals at a single Games in various swimming events.
10 minutes is the longest singular penalty a player can receive. Players are, however, able to commit multiple infractions during the same play. A single player is technically able to commit 60 minutes or more in penalties.
Single bonds have the longest length of the three bonds mentioned here.
The longest bond of those three is a single bond.
Italy became a single, unified nation.
The Femurs, or thigh bones, are the longest single bone in the body.
Single bonds are the longest type of covalent bond.
This is hard to answer because of the varying definitions of great. The longest non-royal rule of a nation by a single person is by Paul Biya. As of 2014, he has been ruling Cameroon since 1975.
the femur
The longest single span bridges are suspension bridges. Currently the longest is the Akashi-Kaikyo Bridge in Japan. Its main span is 1,991 metres.