History (timelines) – records of past events and the way things were. It is also a field responsible for the discovery, collection, organization, and presentation of information about the past.

  • History, by period (See also Timeline of world history)
    • Prehistory – events occurring before recorded history (that is, before written records).
    • Ancient history (timeline) – from ≈3350 BCE to ≈500 CE
      • Ancient West
        • Classical antiquity (timeline) – long period of cultural history in the lands surrounding the Mediterranean Sea, comprising the Greco-Roman world.
          • Ancient Greece (timeline) – period of Greek history lasting from the Greek Dark Ages (ca. 1100 BC) to 146 BC and the Roman conquest of Greece. It was the seminal culture which provided the foundation of Western civilization.
          • Ancient Rome (timeline) – civilization that started on the Italian Peninsula and lasted from as early as the 10th century BC to the 5th century AD. Over centuries it shifted from a monarchy to a republic to an empire which dominated South-Western Europe, South-Eastern Europe/Balkans and the Mediterranean region.
          • Classical architecture – architecture of classical antiquity, that is, ancient Greek architecture and the architecture of ancient Rome. It also refers to the style or styles of architecture influenced by those.
      • Ancient East
        • Ancient China – China from about 2070 to 221 BC, spanning the Xia Dynasty, Shang Dynasty, Zhou Dynasy, the Spring and Autumn period, to the end of the Warring States period.
        • Ancient Egypt – ancient civilization of eastern North Africa, along the lower reaches of the Nile River starting about 3150 BC, in what is now the modern country of Egypt.
        • Ancient India – India as it existed from pre-historic times (c. 7000 BCE or earlier) to the start of the Middle Ages (c. 500 CE).
    • Middle Ages (Medieval history) (timeline) – historical period following the Iron Age, fully underway by the 5th century and lasting to the 15th century and preceding the early Modern Era. It is the middle period in a three-period division of history: Classic, Medieval, and Modern.
    • Renaissance – cultural movement that spanned roughly the 14th to the 17th century, beginning in Florence in the Late Middle Ages and later spreading to the rest of Europe. It encompassed a flowering of literature, science, art, religion, and politics, and gradual but widespread educational reform.
    • Early modern history – from 1500 to 1899
    • Modern history – since 1900.
    • Globalization – progression towards the development of an integrated world community, from ancient times to the present
  1. Due to the early presence of American troops in Vietnam the start date of the Vietnam War is a grey zone. In 1998 after a high level review by the Department of Defense (DoD) and through the efforts of Richard B. Fitzgibbon's family the start date of the Vietnam War was changed to 1 November 1955. U.S. government reports currently cite 1 November 1955, as the commencement date of the “Vietnam Conflict,” for this was the day when the U.S. Military Assistance Advisory Group (MAAG) in Indochina (deployed to Southeast Asia under President Truman), was reorganized into country-specific units and MAAG Vietnam was established. So on 1 November 1955 a Vietnamese MAAG was created. Other start dates include when Hanoi authorized Viet Cong forces in South Vietnam to begin a low level insurgency in December 1956. Whereas some view 26 September 1959 when the first battle occurred between the Communist and South Vietnamese army.