International Polar Year Ship Mini Sov. Sheet MNH NH World War I was the

World War I was the first major conflict involving the large-scale use of aircraft

1883) was a French Impressionist painter

fire prevention

The International Union for Conservation of Nature (IUCN) classifies the impala as a species of least concern

Congo Dogs Domestic Animals Souvenir Sheet FRESH Mint NH

International Polar Year Ship Mini Sov. Sheet MNH NH World War I was theInternational Polar Year Ship Mini Sov. Sheet MNH The International Polar Years (IPY) are collaborative, international efforts with intensive research foci on the polar regions. Karl Weyprecht, an Austro Hungarian naval officer, motivated the endeavor in 1875, but died before it first occurred in 18821883. Fifty years later (19321933) a second IPY took place. The International Geophysical Year was inspired by the IPY and was organized 75 years after