Exhibit by Hank van der Linde
International research of the polar regions.
1882-83 was the first, motivated by Karl Weyprecht, an Austro-Hungarian naval officer:
The second was in 1932-33 – 50 years:
The International Geophysical Year (IGY) 1957-58 – 75 years
2007-08 the Third International Polar Year:
Sources:www.canadapost.ca and Wikipedia