- Category
- Public holiday
- Observed in
Ukraineofficial
Also on this day
Full history →Notable · 2006
The International Astronomical Union passed a resolution redefining the term planet and classifying Pluto as a dwarf planet.- 2023Japan officially begins discharging treated radioactive water from the Fukushima Daiichi Nuclear Power Plant into the Pacific Ocean, sparking international concerns and condemnation.
- 2020Erin O'Toole is elected leader of the Conservative Party of Canada.
- 2017The National Space Agency of Taiwan successfully launches the observation satellite Formosat-5 into space.