Helicopters were developed and built during the first half-century of flight, with the Focke-Wulf Fw 61 being the first operational helicopter in 1936.
there were no helicopters in 1925
The Diphtheria Virus
There are many such commemorations including a statue in New York's Central Park of Balto, the sled dog that was partially responsible for delivering the serum.
diphtheria
Igor Ivanovich Sikorsky in 1925
In the United States, 57 cases were reported between 1980 and 2004.
No, the real Balto was "fixed" and couln't have any pups. Balto 1 is based off the real story, but Balto was really a husky, not part wolf. And he was black/white, possibly dark brown, but he wasn't tan and brown.
Yes, Balto was a real sled dog that helped deliver diphtheria antitoxin to Nome, Alaska in 1925 during a diphtheria outbreak. Balto and his team ran the final leg of the journey and became famous for their heroic efforts.
Diphtheria has been around for thousands of years. Hippocrates was the first to describe it in the fifth century. In the 1880s, F. Loffler discovered it was caused by a bacteria and sometime in the 1920s a vaccine was produced.
Like many other upper respiratory diseases, diphtheria is most likely to break out during the winter months. At one time it was a major childhood killer, but it is now rare in developed countries because of widespread immunization.
The famous diphtheria outbreak of 1925 in Nome, Alaska captured the nation's attention when the life-saving antitoxin was rushed to the remote town overland by dog-sled. It was dubbed the "great Race of Mercy" and was the inspiration for the Iditarod Trail Sled Dog Race held each March since 1973.
In January/February 1925, to combat a diptheria epidemic, dog sled teams relayed diptheria serum from Nenana to Nome. It was also known at the Great Race of Mercy.
Diptheria spread through the town. There was a diptheria epidemic. In 1925 Bolto the half wolf and half dog was a outcast until he ran 600 miles and brought back medicine to the sick people. He was a genuine hero, so he became a sled dog.