What is an example of cultural diffusion?

Islam, Christianity, Buddhism?

Yes, that is correct. The spread of Islam, Christianity, and Buddhism are examples of cultural diffusion. These religions originated in specific regions (Middle East, Europe, and India/China respectively) but have spread to various parts of the world through trade, conquest, and missionary activities. As they spread, they have influenced and been influenced by the cultures they encountered, leading to the creation of new practices and beliefs.