Science earth and space 300x234

marwa shohaib

By marwas

  • 1st Continents (4.4 billion years ago)

    After Pangea broke apart the continents formed about 500 million years ago.

  • 1st Oceans (4.4 billion years ago)

    For about 2.25 billion years Earth's oceans took over most of the Earth's surface.

  • 1st Rock (4.28 billion years ago)

    4.28 billion years ago the first rock was discovered in Canada.

  • Impact the Formed Earth's Moon (3.9 billion years ago)

    The earth collided with an obect 4.5 billions years ago which created the earth's moon.

  • 1st Crust Solidified (3.3 billion years ago)

    Because of the extreme cooling 4.4 billion years ago, the crust solidified.

  • 1st Oxygen (2.5 billion years ago)

    About 2.5 billion years ago rocks began to make oxygen that later created the earth's atmosphere.

  • Photosynthesis Begins (2.5 billion years ago)

    Photosynthesis began about 50 million years ago, once plants and life forms were created the process was able to begin.

  • 1st atmosphere (2.45 billion years ago)

    2.5 billion years ago oxegen released from the rocks, made earths atmosphre.

  • Rodinia Forms (1.1 billion years ago)

    About 1.2 billion years ago Earth's continental surface conjoined together.

  • Rodinia Breaks Apart (750 million years ago)

    Rodinia started to break apart between 750 million years ago

  • 1st Plants (700 million years ago)

    The Cambrian was created 570,000,000 years ago. The second oldest being the ordovician another sea plant born 500,000,000 years ago.

  • "Snowball" Earth (650 million years ago)

    The first ice age was approxamately 20,000 years ago.

  • 1st Organisms (600 million years ago)

    The microorganism is 200,000,000 years old.

  • Pangaea Forms (600 million years ago)

    Pangea formed 600 million years ago.

  • Pangaea Breaks Apart (540 million years ago)

    Pangea split apart 542 million years ago.

  • 1st fish (530 million years ago)

    This goes back more than 500 million years ago. The Myllokunmingia is from the cambrian age. It had fins and swam, but its jaws were not developed yet.

  • 1st Vertebrates (500 million years ago)

    The first anilmals were roaming during this time period, around 600 million years ago.

  • Mass Extinction: Ordivician- Silurian Extinction

    445 Million Years Ago

  • Ist Winged Insects

    400 Million years ago

  • 1st Amphibians

    365 Million years ago

  • 1st Cockroaches

    350 Million years ago

  • 1st Reptiles

    300 Million years ago

  • Mass Extinction: Permian- Triassic Extinction

    251 Million years ago

  • Modern Day Continents Form

    250 Million years ago

  • 1st Dinosaurs

    230 Million Years Ago

  • Mass Extinctin: Triassic- Jurrasic Extinction

    205 Million years ago

  • 1st Mammals

    200 Million years ago

  • 1st Birds

    150 Million years ago

  • Mass Extinction: Cretareous- Tretiary Extinction or Dinosaur Extinction

    65 Million years ago

  • 1st Butterflies

    50 Million years ago

  • 1st Large Primates

    22 Million years ago

  • Industrial Revolution (1700-1900)

  • World War I

    1914-1918

  • World War II

    (1939-1945)

  • Discovery Of America

    (October 12, 1492)

  • Revolutionary War

    1775-1783

  • Constitution Signed

    September 17, 1787

  • Grand Canyon Discovered

    1540

  • Renaissance Period

    1400-1700

  • Industrial Revolution

    1700-1900

  • 1st Automobile

    1769

  • 1st Airplane

    1903

  • 1st Computer

    1946

  • City of Frisco founded

    1904

  • State Of Texas Founded

    December 29, 1845

  • Frisco High School Founded

    1902

  • Moon Landing

    September 13, 1959

  • 1st Atomic Bomb

    July 16, 1945

  • 1st Motion Picture

    1879

  • 1st Television

    1923

  • 1st Radio

    1895

  • My Birthday!!!!!

    December 30, 1993