There is no specific "International Day in Black history" that is widely recognized or celebrated. However, Black History Month is observed in several countries around the world, including the United States, Canada, the United Kingdom, and the Netherlands. Black History Month is typically celebrated in February in the United States and Canada, and in October in the United Kingdom and the Netherlands.

During Black History Month, people celebrate and honor the achievements and contributions of Black individuals and communities throughout history. It is a time to recognize the struggles and triumphs of Black people, as well as to raise awareness about Black history and culture.

Various events and activities are held during Black History Month, including lectures, panel discussions, art exhibits, film screenings, and community celebrations. It provides an opportunity for people to learn about Black history, reflect on the ongoing fight for racial justice, and celebrate the rich and diverse heritage of Black people worldwide.