Wikipedia:Selected anniversaries/December 30
This is a list of selected December 30 anniversaries that appear in the "On this day" section of the Main Page. To suggest a new item, in most cases, you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.
Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured article, featured list or picture of the day.
To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.
December 30: Rizal Day in the Philippines
- 1853 – The United States purchased approximately 29,600 square miles (77,000 km2) of land south of the Gila River and west of the Rio Grande from Mexico for US$10 million.
- 1916 – Emperor Charles I of Austria and Empress Zita were crowned as the last King and Queen of Hungary.
- 1924 – Astronomer Edwin Hubble announced that Andromeda, previously believed to be a nebula, is actually another galaxy, and that the Milky Way is only one of many such galaxies in the universe.
- 1947 – Michael, King of Romania, was forced to abdicate as the Kingdom of Romania became Communist Romania.
- 2000 – A series of bombings occurred around Metro Manila in the Philippines within a span of a few hours, killing 22 people and injuring 100 others.
- 2005 – Tropical Storm Zeta (pictured) was declared a tropical depression, making it the record-breaking thirtieth tropical cyclone of the 2005 Atlantic hurricane season, the most active in recorded history.