Class HistoryConstants

java.lang.Object
org.episteme.social.history.HistoryConstants
public final class HistoryConstants extends Object
Constants and reference points for historical and cosmological timelines.

Provides estimated ages and durations for major events in universal and planetary history, using high-precision Real and Quantity.

Since:
1.0
Version:
2.0
Author:
Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

  • Field Details

    • UNIX_EPOCH

      public static final Real UNIX_EPOCH
      Unix Epoch (January 1, 1970). Reference time point 0.

    • JULIAN_YEAR

      public static final Quantity<Time> JULIAN_YEAR
      Number of seconds in a standard Julian year.

    • UNIVERSE_AGE

      public static final Quantity<Time> UNIVERSE_AGE
      Estimated age of the Universe (v2024 estimate: ~13.787 billion years).

    • SOLAR_SYSTEM_AGE

      public static final Quantity<Time> SOLAR_SYSTEM_AGE
      Estimated age of the Solar System (~4.571 billion years).

    • EARTH_AGE

      public static final Quantity<Time> EARTH_AGE
      Estimated age of the Earth (~4.54 billion years).

    • BIG_BANG_TIMESTAMP

      public static final Real BIG_BANG_TIMESTAMP
      Estimated time of the Big Bang relative to Unix Epoch.

    • EARTH_FORMATION_TIMESTAMP

      public static final Real EARTH_FORMATION_TIMESTAMP
      Time since the formation of Earth relative to Unix Epoch.

    • HADEAN

      public static final GeologicalEra HADEAN

    • ARCHEAN

      public static final GeologicalEra ARCHEAN

    • PROTEROZOIC

      public static final GeologicalEra PROTEROZOIC

    • PHANEROZOIC

      public static final GeologicalEra PHANEROZOIC

    • PALEOZOIC

      public static final GeologicalEra PALEOZOIC

    • MESOZOIC

      public static final GeologicalEra MESOZOIC

    • CENOZOIC

      public static final GeologicalEra CENOZOIC

    • TRIASSIC

      public static final GeologicalEra TRIASSIC

    • JURASSIC

      public static final GeologicalEra JURASSIC

    • CRETACEOUS

      public static final GeologicalEra CRETACEOUS

    • PALEOGENE

      public static final GeologicalEra PALEOGENE

    • NEOGENE

      public static final GeologicalEra NEOGENE

    • QUATERNARY

      public static final GeologicalEra QUATERNARY

    • PLEISTOCENE

      public static final GeologicalEra PLEISTOCENE

    • HOLOCENE

      public static final GeologicalEra HOLOCENE

    • RENAISSANCE

      public static final HistoricalEra RENAISSANCE
      The Renaissance (c. 1400 - c. 1600).

    • INDUSTRIAL_REVOLUTION

      public static final HistoricalEra INDUSTRIAL_REVOLUTION
      The Industrial Revolution (c. 1760 - c. 1840).

    • ANCIENT_GREECE

      public static final HistoricalEra ANCIENT_GREECE
      Ancient Greece (c. 800 BCE - 31 BCE).

    • ROMAN_EMPIRE

      public static final HistoricalEra ROMAN_EMPIRE
      Roman Empire (27 BCE - 476 CE).

    • MIDDLE_AGES

      public static final HistoricalEra MIDDLE_AGES
      Middle Ages (c. 500 - c. 1500).

    • GREAT_PYRAMID

      public static final HistoricalEvent GREAT_PYRAMID

    • FOUNDING_OF_ROME

      public static final HistoricalEvent FOUNDING_OF_ROME

    • BATTLE_OF_MARATHON

      public static final HistoricalEvent BATTLE_OF_MARATHON

    • FALL_OF_ROME

      public static final HistoricalEvent FALL_OF_ROME

    • FRENCH_REVOLUTION

      public static final HistoricalEvent FRENCH_REVOLUTION

    • WORLD_WAR_I

      public static final HistoricalEvent WORLD_WAR_I

    • WORLD_WAR_II

      public static final HistoricalEvent WORLD_WAR_II

    • MOON_LANDING

      public static final HistoricalEvent MOON_LANDING

    • WORLD_HISTORY

      public static final HistoricalTimeline WORLD_HISTORY
      Major events in world history.

    • ANCIENT_HISTORY

      public static final HistoricalTimeline ANCIENT_HISTORY
      Major events in ancient history.