Complex sentence: Black is beautiful is a cultural movement in the United States of America beginning in the 1960s that aims to dispel the widespread notion that black people's natural features such as skin color, facial features and hair are inherently ugly.
Split into simpler sentences: Black is beautiful is a cultural movement of the United States of America, beginning in the 1960s. It aims to dispel the widespread notion that black people's natural features such as skin color, facial features and hair are inherently ugly.