September 23 History

September is the ninth month of the year in our modern-day Gregorian calendar. In older versions of the ancient Roman calendar, September was the seventh month of the year. It became the ninth month when January and February were added to the calendar.

September was originally september mensis, the seventh month of the year in the Roman calendar and consisted of 30 days. Its name was changed during the Julian calendar reform in 153 BCE to honor Julius Caesar.

According to Gregory calendar, the day number 365 in a year and if it is a leap year then the day number is 366. September 23 has its own special significance in India and world history.

In modern times, September has 30 days. September starts on the same day of the week as December every year.

Here you will find some important events that happened today in Indian and world History on September 23. Read on to know more about this day.

List of Important Historical events of 23 September:

  • 1123: Pope Calixtus II and the Holy Roman Emperor Henry V agree to put an end to the investment dispute to the Concordat of Worms.
  • 1459: Yorkist forces led by Richard Neville defeated Lancastrian soldiers at the Battle of Blair Heath in Staffordshire, England, the first battle of the Wars of the Roses.
  • 1568: Anglo-Spanish War-et San Juan de Uluia (in modern Veracruz, Mexico), Spanish naval forces force English privateers to stop their illicit trade.
  • 1739: Belgrade peace agreement signed between Russia and Turkey.
  • 1739: Russia and Turkey sign Belgrade peace treaty.
  • 1779: American Revolutionary War — John Paul Jones led the Continental Navy at the Battle of Flamborough Head, one of the most famous naval tasks of the war.
  • 1780: American Revolutionary War — British officer John André was captured by the Patriot forces, exposing a plot by Continental Army General Benedict Arnold and handed over to West Point, New York.
  • 1803: British East India Company defeated Maratha army in battle of Assay.
  • 1803: Battle of Asar (India): The British led party defeated the Maratha army.
  • 1803: Maratha soldiers were beaten by the British army at the Battle of Ataea, one of the decisive battles of the Second Anglo-Maratha War.
  • 1806: The Lewis & Clark Expedition reached St. Louis, Missouri, ending successful exploration of the Louisiana Territory and the Pacific Northwest.
  • 1810: Republic of West Florida declares independence from Spain.
  • 1818: Markers of the border formally established for the European region of Moresat.
  • 1823: In the first Anglo-Burmese War, Burma attacked the British at Shahpura, an island close to Chittagong.
  • 1846: Gottfried Galah, along with ally Heinrich, first saw the planet Neptoon from a telescope.
  • 1846: German astronomer Johann Gottfried Galle became the first to observe Neptune and identify it as an undisclosed unknown planet, using mathematical predictions by French mathematician Urbann Lallier.
  • 1857: Russian warship Laffert vanishes in a severe storm in the Gulf of Finland, killing 826 people.
  • 1868: Ramon Imaterio Betances led Grito de Lares, a rebellious Spanish regime in Puerto Rico.
  • 1873: Tom Allen defeated Mike McKell for the heavyweight boxing title.
  • 1875: Billy the Kid was arrested for the first time after stealing clothes from a laundryman who started his life as a notorious American out law and gunman.
  • 1879: Richard Rhodes invented a listening machine called the audiophone.
  • 1899: Philippine-American War-American Asian Squadron destroys a Filipino artillery battery at Olongapo.
  • 1908: Famous Hindi poet Ramdhari Singh ‘Dinkar’ was born in Simaria village in Bihar.
  • 1911: Earl Owington became the first Air Mail pilot.
  • 1929: Child Marriage Prevention Bill (Sharda Law) passed.
  • 1932: The Kingdom of Nejed and Hejaz merged with Al-Hasa and Qatif to form the Kingdom of Saudi Arabia, with Ibn Saud as the first Raj and Riyadh as the capital.
  • 1952: Republican Vice Presidential candidate Richard Nixon gives a ‘checkers speech’ to Republican Vice Presidential candidate Richard Nixon, directly denying allegations of contribution to his campaign.
  • 1958: Britain conducts atmospheric nuclear tests on Christmas Island.
  • 1958: The United Nations General Assembly is expected to call for a vote today regarding China’s entry and a seat in the United Nations.
  • 1965: Ceasefire between India and Pakistan declared.
  • 1970: Abdul Razak bin Hussain became Prime Minister of Malaysia.
  • 1974: Safex (one of the first public information service systems) was introduced by the BBC.
  • 1979: President of Somalia’s constitution approved.
  • 1983: A bomb planted by the Abu Nidal Organization devastates Gulf Air Flight 771 flying from Karachi, Pakistan to Abu Dhabi, killing 110 people on board.
  • 1986: The US Congress elected Rose as America’s national flower.
  • 1999: Mars climate orbiter reaches Mars. It never emerged or made radio contact after the spacecraft passed behind Mars. NASA believed that the Mars Climate Orbiter was at a very low altitude and was destroyed by atmospheric stress and friction at this low altitude.
  • 2004: At least 1,070 people died in the post-hurricane floods in Haiti.
  • 2006: A car bomb was dropped in Baghdad as an attack on a kerosene tanker. It killed 35 people and injured several. The attack is part of the violence that is causing tension between Shia and Sunni Muslims through Iraq during the holy month of Ramadan.
  • 2008: Ten students were shot dead by a gunman at the Sinajoki University of Applied Sciences in Kauhajoki, western Finland, before committing suicide.
  • 2009: The Indian Space Research Organization (ISRO) placed seven satellites in orbit, including the Indian satellite Ocean Sat-2.
  • 2009: India successfully launched seven satellites in a single mission. One month after its inaugural moon mission ended. Included are six small satellites that have been acquired from Germany, Switzerland and Turkey.
  • 2010: Prime Minister of India, Manmohan Singh called an emergency meeting. It is for his ministers, to discuss the problems with the facilities of the Commonwealth Games to be held in India.
  • 2010: Teresa Lewis became the first woman to be executed by the USstate of Virginia since 1912, and the first woman in the state via lethal injection.
  • 2011: NASA’s 1991 round upper atmosphere research satellite is likely to fall into orbit of Greenwich Mean Time this evening.
  • 2012: Egyptian President Mohammed Morsi calls for large protests. This is when he passed a degree to broaden the new powers in the country.
  • 2012: Researchers found that there are four genetic types of breast cancer.
  • 2013: An Egyptian court banned all Muslim Brotherhood activities across the country. As per the decision of the new court all the Brotherhood property will be confiscated.
  • 2014: The United States and its allies launch airstrikes in Syria to report at least 120 deaths against the Islamic State.

The Most Important Historical events of September Month

Also See: Today in Indian and World History – What Happened Today In History

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