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Circa 1930s - a reservoir is filled by gushing water from a dam.
CIRCA 1960s - Big seasonal surf in Hawaii is enjoyed by champion surfers in the 1960s.
CIRCA 1960s - The concept of surfing, a Hawaiian tradition, is explained in a 1960s film about surf riding.
CIRCA 1942 - The hydroelectric power plants at Grand Coulee Dam are shown.
CIRCA 1950s - The United States Congress voting to build a hydroelectric dam, in response to flooding, is compared to a children's game.
CIRCA 1930s - A dam is being built in Frain, Czechoslovakia, in 1933.
CIRCA 1942 - The hydroelectric power plants at Grand Coulee Dam are shown.

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1104156919

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Circa 1930s - water pours from a dam into a reservoir.

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