There is no specific "International Convention in Black history" that is widely recognized. However, there are several important events and conventions that focus on Black history and culture internationally.

Some notable international conventions and events related to Black history include: - The International African Arts Festival in Brooklyn, New York, which celebrates African culture and heritage through music, dance, art, and more. - The Chale Wote Street Art Festival in Ghana, which showcases contemporary African art and culture. - The Africana Studies Association annual conference, which brings together scholars and researchers from around the world to discuss topics related to the African diaspora.

These events play a significant role in celebrating and promoting Black history on a global scale, highlighting the importance of recognizing and honoring the contributions of people of African descent to world history and culture.