When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. History of science - Wikipedia

    en.wikipedia.org/wiki/History_of_science

    The nature of the history of science is a topic of debate (as is, by implication, the definition of science itself). The history of science is often seen as a linear story of progress [27] but historians have come to see the story as more complex.

  3. Silurian hypothesis - Wikipedia

    en.wikipedia.org/wiki/Silurian_hypothesis

    The Silurian hypothesis is a thought experiment, [1] which assesses modern science's ability to detect evidence of a prior advanced civilization, perhaps several million years ago. The most probable clues for such a civilization could be carbon , radioactive elements or temperature variation.

  4. Political history of the world - Wikipedia

    en.wikipedia.org/wiki/Political_history_of_the_world

    The political history of the world is the history of the various political entities created by the human race throughout their existence and the way these states define their borders. Throughout history, political systems have expanded from basic systems of self-governance and monarchy to the complex democratic and totalitarian systems that ...

  5. Pre-existence - Wikipedia

    en.wikipedia.org/wiki/Pre-existence

    Pre-existence, premortal existence, beforelife, or life before birth, is the belief that each individual human soul existed before mortal conception, and at some point before birth enters or is placed into the body. Concepts of pre-existence can encompass either the belief that the soul came into existence at some time prior to conception or ...

  6. Protohistory - Wikipedia

    en.wikipedia.org/wiki/Protohistory

    Protohistory is the period between prehistory and written history, during which a culture or civilization has not yet developed writing, but other cultures that have developed writing have noted the existence of those pre-literate groups in their own writings.

  7. State formation - Wikipedia

    en.wikipedia.org/wiki/State_formation

    Examples of early states which developed in interaction with other states include the Aegean Bronze Age Greek civilizations and the Malagasy civilization in Madagascar. [28] Unlike primary state formation, early state formation does not require the creation of the first state in that cultural context or autonomous development, independently ...

  8. List of time periods - Wikipedia

    en.wikipedia.org/wiki/List_of_time_periods

    Ancient history – Aggregate of past events from the beginning of recorded human history and extending as far as the Early Middle Ages or the Postclassical Era. The span of recorded history is roughly five thousand years, beginning with the earliest linguistic records in the third millennium BC in Mesopotamia and Egypt .

  9. Science in the ancient world - Wikipedia

    en.wikipedia.org/wiki/Science_in_the_ancient_world

    Babylonian astronomy was "the first and highly successful attempt at giving a refined mathematical description of astronomical phenomena." [2] According to the historian Asger Aaboe, "all subsequent varieties of scientific astronomy, in the Hellenistic world, in India, in Islam, and in the West—if not indeed all subsequent endeavour in the exact sciences—depend upon Babylonian astronomy in ...