Talk:January 1

January 1: Public Domain Day; Solemnity of Mary, Mother of God (Roman Rite Catholicism)

"Am I not a man and a brother", emblem used by abolitionists

• 417 – Galla Placidia was forced by her brother Honorius into marriage with his magister militum, Constantius III.
• 1808 – As a result of the lobbying efforts by the abolitionist movement (emblem pictured), the importation of slaves into the United States was officially banned, although slavery itself remained permitted.
• 1914 – The St. Petersburg–Tampa Airboat Line in the U.S. state of Florida became the first scheduled airline using a winged aircraft.
• 1957 – The revised Thai criminal code came into force, strengthening the law on lèse-majesté in Thailand to include insult and treating it as a crime against national security.
• 2019 – The NASA space probe New Horizons flew by the trans-Neptunian object Arrokoth, making it the farthest object visited by a spacecraft.