2025 in sumo Ukrainian "sekiwake" Aonishiki Arata defeats Mongolian "yokozuna" Hōshōryū Tomokatsu in the playoff to become the first Ukrainian wrestler to win the "Honbasho".
2025 Slovenian assisted dying referendum Slovenians reject a referendum on a law that proposed legalising assisted dying for some terminally ill adults with 53.44% voting against.
2025 Republika Srpska presidential election Citizens of Republika Srpska, Bosnia and Herzegovina, vote for a president to replace Milorad Dodik, who was removed by the court in June. Preliminary results show that Dodik's ally, Siniša Karan of SNSD, will defeat Branko Blanuša of SDS with 50.89% of the votes.
Election Bissau-Guineans vote for a president, with incumbent Umaro Sissoco Embaló seeking a second term.
Slender Man stabbing Police detain stabbing convict Morgan Geyser in Posen, Illinois, United States, after he removed his monitoring device and fled a supervised group home in Wisconsin. Geyser is returned to Wisconsin custody.
2026 United Nations Climate Change Conference Australia and Turkey confirm an agreement for Turkey to host the 2026 United Nations Climate Change Conference (COP31) in Antalya, with Australia leading the conference's negotiation process and the Asia–Pacific Group convening a pre-COP31 meeting focused on climate-related vulnerabilities.
Hayli Gubbi The long-dormant Hayli Gubbi volcano erupts in the Afar Region of Ethiopia for the first time in nearly 12,000 years, sending ash plumes across the Red Sea towards Oman and Yemen, and causing flight disruptions across the Arabian Peninsula and South Asia.
International Paderewski Piano Competition South Korean pianist Roh Hyunjin wins the 13th International Piano Competition held at the Pomeranian Philharmonic in Bydgoszcz, Kuyavia–Pomerania, Poland.
2025 massacres of Syrian Alawites Sectarian violence erupts in the Homs area of Syria, targeting the Alawite population.
Israel–Hezbollah conflict Israel carries out an airstrike on a building in Beirut, Lebanon, killing five Hezbollah militants and injuring 28 others. Hezbollah military chief Haytham Ali Tabatabai is confirmed among the fatalities.