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Timeline Assignment

By Evan Logan Kelly

  • Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution.

  • Henry David Thoreau published Walden

  • The term ecology is coined in German as Oekologie by Ernst Heinrich Philipp August Haeckel

  • The term acid rain is coined by Robert Angus Smith in the book Air and Rain

  • The term smog is coined by Henry Antoine Des Voeux in a London meeting to express concern over air pollution

  • World War I begins

    World War I begins
    World War I was one of the most deadliest wars in history which cause around 40 million casualties and was caused by the assassination of Archduke Franz Ferdinand.

  • US Congress created the National Park Service

  • Spanish Flu

    Spanish Flu
    Spanish Flu was a disease that began during World War I

  • End of World War I

    End of World War I
    Germany signs an armistice ending the "Great War"

  • The Great Depression begins

    The Great Depression begins
    The Great Depression was the worst economic event in history.

  • World War II begins

    World War II begins
    World War II was the deadliest conflict in human history.

  • Germany surrenders

    Germany surrenders
    Germany surrender marking an end to the war in Europe

  • Atomic Bombing of Hiroshima

    Atomic Bombing of Hiroshima
    This atomic bombing began the nuclear era.

  • The Truman doctrine starts the cold war

    The Truman doctrine starts the cold war
    The cold war spanned half of the 20th century and was a long period of tension between the United States and the Soviet Union

  • Rachel Carson published Silent Spring

  • The Apollo 8 picture of Earthrise

  • First Earth Day – April 22. Millions of people gather in the United States for the first Earth Day. US Environmental Protection Agency established

  • Montreal Protocol on substances that deplete the ozone layer entered into force

  • Fall of the Berlin wall

    Fall of the Berlin wall
    The Berlin wall collapses when marks the start of the unification of Germany

  • Collapse of the Soviet Union and the end of the Cold War

    Collapse of the Soviet Union and the end of the Cold War
    The collapse of Soviet Union lead to many economic problems in the country.

  • The Kyoto Protocol was negotiated in Kyoto, Japan in December. Countries that ratify this protocol commit to reduce their emissions of carbon dioxide

  • U.S. rejects the Kyoto Protocol

  • U.S. announces it will cease participation in the Paris Agreement on climate change mitigation

  • U.S. announces it will rejoin the Paris Agreement on climate change mitigation