Early Human Articles

• Fossils
  Environmental Policy
  Extinction
  Ice Ages
  Origin of Life
  Early Climate
   
  

  Cambrian

  The Cambrian is a major division of the geologic timescale that begins about 542 Ma (million years ago) at the end of the Proterozoic eon and ended about 488.3 Ma with the beginning of the Ordovician ... > more
• Fossils
  Geography
  Geology
  Origin of Life
  Extinction
  Environmental Policy
   

  Paleozoic

  The Paleozoic Era is a major division of the geologic timescale, one of four geologic eras. The Paleozoic includes six geologic periods; from oldest to youngest -- the Cambrian, Ordovician, Silurian, ... > more
• Earth Science
  Environmental Issues
  Global Warming
  Geomagnetic Storms
  Near-Earth Object Impacts
  Anthropology
   

  End of civilization

  The end of civilization or the end of the world are phrases used in reference to human extinction scenarios, doomsday events, and related hazards which occur on a global ... > more
• Sports Science
  Ancient Civilizations
  Fossils
  Solar Flare
  Technology
  Sun
   
  

  Antikythera mechanism

  The Antikythera mechanism is an ancient mechanical analog computer (as opposed to digital computer) designed to calculate astronomical positions. It was discovered in the Antikythera wreck off the ... > more
• Ancient Civilizations
  Anthropology
  Cultures
  Origin of Life
  Human Evolution
  Charles Darwin
   
  

  Inca Empire

  The Inca Empire was an empire centered in what is now Peru from AD 1438 to AD 1533.The Inca people began as a tribe in the Cuzco area around the 12th century ... > more
• Sports Medicine
  Human Biology
  Healthy Aging
  Obesity
  Foodborne Illness
  Life Sciences
   
  

  Flatworm

  The flatworms are a phylum of relatively simple soft-bodied invertebrate animals. With about 25,000 known species they are the largest phylum of acoelomates. Flatworms are found in marine, ... > more
• Fossils
  Early Mammals
  Origin of Life
  Evolution
  Dinosaurs
  Paleontology
   
  

  Smilodon

  Smilodon means knife tooth, an entirely appropriate name given its enormous fangs. The smilodon species are also known as Saber-Toothed Cats (which is inaccurate because there are other, unrelated ... > more
• Sports Science
  Ancient Civilizations
  Construction
  Civil Engineering
  Vehicles
  Aviation
   
  

  Crane (machine)

  A crane is a tower or derrick equipped with cables and pulleys that can be used both to lift and lower materials and to shift them horizontally. Cranes are commonly employed in the construction ... > more
• Ancient Civilizations
  Lost Treasures
  Early Climate
  Human Evolution
  Origin of Life
  Charles Darwin
   
  

  RMS Titanic

  RMS Titanic was an Olympic class passenger liner that collided with an iceberg and sank in 1912. The second of a trio of superliners, she and her sisters, RMS Olympic and HMHS Britannic, were ... > more
• Ancient Civilizations
  Anthropology
  Cultures
  Archaeology
  Lost Treasures
  Origin of Life
   
  

  Maya civilization

  The Maya civilization is a Mesoamerican civilization, noted for the only known fully developed written language of the pre-Columbian Americas, as well as its spectacular art, monumental architecture, ... > more

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