In 1882, growing consensus among scientists prompted the launch of 15 coordinated expeditions to the Arctic and Antarctic the first International Polar Year. Much has been learned since that first Polar Year 125 years ago and much remains to be understood about the polar regions their climate, environment and their inter-relationship with the oceans, atmosphere and other land masses. The historic search for the Northwest Passage did indeed reveal that all parts of the globe are connected, but as the next Polar Year will continue to show, that connection reaches far beyond the scope of a trans-Arctic trading route. Face Value: 20 dollars Composition. 075 Copper Weight (g): 27.8 Diameter (mm): 40.0 Edge: Reeded Finish: Proof.Packaging: comes in original packaging with certificate. Citadel Coins Halifax, Nova Scotia Official Royal Canadian Mint Distributor.