On January 13, 1984, President Ronald Reagan issued a proclamation designating January 22 as the first National Sanctity of Human Life Day. (In 1973, January 22 was the day the U.S. Supreme Court legalized abortion-on-demand in all 50 states.)
Churches continue to recognize the third Sunday in January as Sanctity of Human Life Sunday. In 2022, that date falls on January 16, although some churches will mark it on the 23rd because it's closer to the anniversary. Either day is fine.
On Sanctity of Human Life Sunday, churches throughout the United States celebrate God's gift of life, commemorate the lives lost to abortion, and commit to protecting human life at every stage. Each year, Life Matters Worldwide prepares resources for churches to use. Our materials are undated, so they may be used at any time.