-3700s till Birth of Christ

• Dwapara Yuga
  
• October 7, 3761 BC — The epoch (origin) of the modern Hebrew calendar
• September 25, 3760 BC — First day of the Hebrew calendar (the Creation)
• 3102 BC — Year 0 of the Kali Yuga begins.
• c. 3100 BC the earliest phase of Stonehenge construction begins.
• 9 Oct 3009 BC Julian Mahabharata war started (according to calculations of Aryabhatta)
• Adam (3760 BC–2930 BC Hebrew Calendar), the first human according to the Hebrew Bible
• Drainage and sewage system in India
• Dams, canals, stone sculptures using inclined plane and lever in Sumer
• Pyramids in Ancient Egypt
• Copper was in use, both as tools and weapons
• (2874 B.C.?) the 365-day year was installed in ancient Egypt, with fixed lunar months of 30 days + 5 epagomenal days [1]
• Noah (2704 BC–1753 BC) according to the Hebrew Calendar
• c. 2613 BC – 2494 BC — The Great Sphinx at Giza is built. Fourth Dynasty.
• c. 2600 BC — The Harappan civilization rises to become a powerful civilization.
• c. 2550 BC — Estimated date of completion of the Great Pyramid of Giza.
• c. 2300 BC — Bronze Age started.
• According to Hindu tradition, lifetime of Rama, the 7th avatar of Vishnu
• 2000 BC — Stonehenge is believed to have been completed.
• 2000 BC — Horses are tamed and used for transport.
• c. 2000 BC — Decline of Harappan civilization starts.
• 2000 BC — First written accounts of Schizophrenia
• 1812 BC — Birth of Abraham according to the Hebrew Calendar (1,948 years after biblical creation.
• 1800 BC - beginning of Iron Age in India
• 1800–1700 BC — Decline of the Indus Valley Civilization.
• 1600s BC — The end of the Indus Valley civilization.
• Development of leavened bread in Egypt.
• Development of the windmill in Persia.
• 1500s BC — Vedic Civilization begins in India
• 1500 BC — Indo-Aryan migration is often dated to the 17th to 16th centuries.
• 1500 BC–1400 BC — The Rigveda was composed around this time.
• 1446 BC — According to Biblical literalist chronologies, Moses leads the Exodus of the Jews from Egypt.
• 1310s BC — The Bhagavad Gita is written, according to some Hindu traditions.
• 900s BC — India — Vedic India — Yajnavalkya writes the Shatapatha Brahmana, in which he describes the motions of the sun and the moon.
• 700 BC — The Upanishads, a sacred text of Hinduism, are written around this time.
• Chinese record solar eclipse
• 700 BC to 600 BC — Baudhayana Sulbasutra, an orally transmitted Vedic Sanskrit text on altar construction, contains the earliest extant verbal statement of the Pythagorean theorem, which was likely known to (but not stated by) Old Babylonians (1800 BC to 1600 BC).
• Theological religions emerge(Confusianism,Bhuddism,Zoraster)
  
• 528 BC — Gautama Buddha attained Enlightenment, and began his ministry. Gautama Buddha founds Buddhism in India. It becomes a major world religion.
• 510 BC — Establishment of the Roman Republic.
• 500 BC — Foundation of first republic in Vaishali Bihar India.
• 399 BC Socrates is executed in Athens on charges of impiety and corrupting Athenian youth.
• Alexander the Great, King of Macedon, invades Asia Minor, Persia and reaches India (born 356, reigned 336–323 BC)
• Bindusara succeeds his father Chandragupta Maurya as emperor of the Mauryan Empire.
• 273 BC–252 BC Ashoka the Great ruled the Mauryan Empire.
• Glass blowing is invented in Roman Syria
• Silk Road between Europe and Asia
• Hipparchus discovers precession of Earth's equinoxes and compiles first trigonometric tables
• 30 BC Mark Antony, Roman politician and general (suicide)
• 30 BC August 12 — Pharaoh Cleopatra VII of Egypt (suicide, or executed)
• 5BC The Birth of Jesus is traditionally placed around this time, estimated to be 29 September
• Jesus Travels to India