Our Lady of Fatima is a Catholic Marian Apparition that occurred in Fatima, Portugal from 1917 onward. The apparitions warned of the errors of Russia that were then spreading, a reference to Communism's growth around the world. They informed the Catholic Church's Anti-Communist stance.
"The story begins in the village of Fatima, Portugal, on May 13, 1917. On that fateful day near that tiny village, The Blessed Virgin Mary, Mother of God, appeared to three young peasant children: Francisco, Jacinta, and Lucia; ages 10, 9 and 7. As was the custom, these youngsters were tending their family’s sheep when “a Lady all in white, more brilliant than the sun… indescribably beautiful,” standing above a bush, appeared to the youngsters.
From May through October 1917, the Lady appeared and spoke to the children on the 13th day of each month." [1]
One of the Fatima prophesies was that Russia would spread error until it was consecrated to the Immaculate Heart of Mary. In 2022, Pope Francis announced he would do that, fulfilling the prophesy after over 100 years. The long-term effects of this have not yet been seen.