The Naqada civilization dates back to prehistoric times in Egypt. It is classified by historians into three historical phases: Naqada I (about 4000–3500 BC), Naqada II (about 3500–3300 BC), and Naqada III (about 3300–3050 BC). Naqada I is generally known for its black-topped painted pottery, while Naqada II is noted for the introduction of marl pottery, usually with ochre-brown paintings on a beige background. This cross-lined ware beaker was discovered at Naga-el-Deir, a site with a number of cemeteries covering a remarkable span of time - from the early Predynastic to the Byzantine Period. The beaker reflects the rich Nile Valley environment in Egypt during Predynastic times. It is decorated with geometric shapes, plants, crocodiles, hippopotami and fish.