Every year on October 15, events are held around the world to mark the International Day of the Lost Child. This date is also called the Day of Remembrance for a child lost during pregnancy or an unborn baby. Residents of France, Italy, Canada, the United States, Great Britain and other countries joined in commemorating the lost children on this day. The memorial date is dedicated to the memory of babies who were not born due to miscarriages, who died due to sudden infant death syndrome, stillborn babies and babies who died for other reasons.

The commemorative date was introduced in 1988 by US President R. Reagan. He issued a decree declaring October the month of commemoration for stillborn children and infants lost during pregnancy or childbirth. This decree contributed to the creation of a large-scale social movement, the actions of which led to the declaration of October 15, 2002 as the International Day of the Lost Child. The memorial date began to be celebrated every year. Initially, 20 American states took part in the measures, and later other states and countries joined the initiative.