| 108787 | September 22 | Death | 2013 – Dave Nichol, Canadian businessman (b. 1940) |
| 108788 | September 22 | Death | 2013 – Hans Erich Slany, German industrial designer, founded TEAMS Design (b. 1926) |
| 108789 | September 22 | Death | 2014 – Fernando Cabrita, Portuguese footballer and manager (b. 1923) |
| 108790 | September 22 | Death | 2014 – Skip E. Lowe, American talk show host and actor (b. 1929) |
| 108791 | September 22 | Death | 2014 – Sahana Pradhan, Nepalese politician, Nepalese Minister of Foreign Affairs (b. 1927) |
| 108792 | September 22 | Death | 2014 – Erik van der Wurff, Dutch pianist, composer, and conductor (b. 1945) |
| 108793 | September 22 | Death | 2014 – Hans E. Wallman, Swedish director, producer, and composer (b. 1936) |
| 108794 | September 22 | Death | 2015 – Yogi Berra, American baseball player, coach, and manager (b. 1925) |
| 108795 | September 22 | Death | 2015 – Joe LeSage, American lawyer and politician (b. 1928) |
| 108796 | September 22 | Death | 2015 – James David Santini, American lawyer and politician (b. 1937) |
| 108797 | September 22 | Death | 2015 – Richard G. Scott, American engineer and religious leader (b. 1928) |
| 108798 | September 22 | Death | 2015 – Phyllis Tickle, American author and academic (b. 1934) |
| 108799 | September 22 | Holiday and observance | American Business Women's Day (United States) |
| 108800 | September 22 | Holiday and observance | Christian feast day:CandidusDigna and EmeritaEmmeram of RegensburgMaurice (Western Christianity)Paul Chong Hasang (one of The Korean Martyrs)PhocasSadalbergaTheban LegionThomas of VillanovaPhilander Chase (Episcopal Church)September 22 (Eastern Orthodox l |
| 108801 | September 22 | Holiday and observance | Earliest date for the autumnal equinox in the Northern Hemisphere and the vernal equinox in the Southern Hemisphere:Autumnal Equinox Day (Japan)French Republican New Year, the first day ("Grape") in the Month of Vendémiaire. (French Revolution)Harvest fes |
| 108802 | September 22 | Holiday and observance | Hobbit Day, the containing week is celebrated as Tolkien Week. (American Tolkien Society) |
| 108803 | September 22 | Holiday and observance | Independence Day (Bulgaria), celebrates the independence of Bulgaria from the Ottoman Empire in 1908. |
| 108804 | September 22 | Holiday and observance | Independence Day (Mali), celebrates the independence of Mali from France in 1960. |
| 108805 | September 22 | Holiday and observance | OneWebDay, an annual day of Internet celebration and awareness, started in 2006. |
| 108806 | September 22 | Holiday and observance | Resistance Fighting Day (Estonia) |
| 108807 | September 22 | Holiday and observance | World Car-Free Day |
| 108808 | September 23 | Event | 1122 – Pope Callixtus II and Holy Roman Emperor Henry V agree to the Concordat of Worms to put an end to the Investiture Controversy. |
| 108809 | September 23 | Event | 1338 – The Battle of Arnemuiden was the first naval battle of the Hundred Years' War and the first naval battle using artillery, as the English ship Christofer had three cannon and one hand gun. |
| 108810 | September 23 | Event | 1409 – Battle of Kherlen, the second significant victory over Ming dynasty China by the Mongols since 1368. |
| 108781 | September 22 | Death | 2012 – Grigory Frid, Russian pianist and composer (b. 1915) |
| 108782 | September 22 | Death | 2012 – Jan Hendrik van den Berg, Dutch psychiatrist and academic (b. 1914) |
| 108783 | September 22 | Death | 2013 – Gary Brandner, American author and screenwriter (b. 1930) |
| 108784 | September 22 | Death | 2013 – Jane Connell, American actress and singer (b. 1925) |
| 108785 | September 22 | Death | 2013 – David H. Hubel, Canadian-American neurophysiologist and academic, Nobel Prize laureate (b. 1926) |
| 108786 | September 22 | Death | 2013 – Álvaro Mutis, Colombian-Mexican author and poet (b. 1923) |