Anne and Samantha Day is observed worldwide on December 21, coinciding with the winter solstice, and also on June 20 for the summer solstice. This day honors Anne Frank and Samantha Smith, two young girls whose lives were tragically cut short yet left a significant mark in history. Anne Frank, a Jewish girl born in Frankfurt in 1929, documented her life in hiding during the Nazi occupation of the Netherlands in her diary, which was later published as "The Diary of a Young Girl." Samantha Smith, born in 1972, gained fame for her letter to Soviet leader Yuri Andropov during the Cold War, which led to her visit to the Soviet Union at the age of ten. The day was established by advocates campaigning for postage stamps to honor both girls. Observances include reading their works, such as Frank's diary and Smith's "Journey to the Soviet Union," and sharing insights on social media using the hashtags #AnneAndSamanthaDay and #AnneSamanthaDay.