The Klondike Gold Rush was a migration by an estimated 100,000 prospectors to the Klondike Claims began to be sold between miners and speculators for considerable sums. Furthermore, the Pacific ports closest to the gold strikes were desperate to encourage The process was repeated until the gold was reached.
Hope it helps!
The artistic decision to use black and white film despite having access to high quality color techniques is a notable feature of Schindler's list. The use of black and whites allows for a realistic recreation of the WWII era environments, tone and aesthetic.