February 15 is an important day in the calendar, which is celebrated by several international holidays, and also contains many interesting events and memorable dates. Today this day is known not only because of cultural and religious traditions, but also because of the rich history, covering both ancient times and the latest events.

Among the international holidays on this day it should be celebrated by the Day of the Computer Studies, World Oncoboil Day and International Day of the Operational Nurse. Each of these holidays is important for increasing awareness of relevant problems and contributes to the development of support and assistance at the global level.

On February 15, Ukraine celebrates the day of memory of participants in hostilities in the territory of other states (the former name for the Day of Memory of Internationalists). This holiday has been celebrated annually since February 11, 2004.