When was African art created?

When was African art created?
The origins of African art lie long before recorded history. African rock art in the Sahara in Niger preserves 6000-year-old carvings.[5]x The earliest known sculptures are from the Nok culture of Nigeria, made around 500 BCE. Along with sub-Saharan Africa, the cultural arts of the western tribes, ancient Egyptian paintings and artifacts, and indigenous southern crafts also contributed greatly to African art. Often depicting the abundance of surrounding nature, the art was often abstract interpretations of animals, plant life, or natural designs and shapes.
More complex methods of producing art were developed in sub-Saharan Africa around the 10th century, some of the most notable advancements include the bronzework of Igbo Ukwu and the terracottas and metalworks of Ile Ife Bronze and brasscastings, often ornamented with ivory and precious stones, became highly prestigious in much of West Africa, sometimes being limited to the work of court artisans and identified with royalty, as with the Benin Bronzes.