When Athenodorus later excavated the area, a shackled skeleton was unearthed. Other archaeological sites have been unearthed in Inner Mongolia. Archaeologists have unearthed 19 villages so far. This is a list of Neolithic cultures of China that have been unearthed by archaeologists. Tanzania is home to some of the oldest hominid settlements unearthed by archaeologists. Over 300,000 artefacts have been unearthed to date. Hesperornithid fossils have also been unearthed in Arkansas. However, on further excavation large Roman cisterns were unearthed. Further expeditions in Mongolia unearthed more fossils. Toys and games have been unearthed from the sites of ancient civilizations. In a final showdown, truths are unearthed and treasures exposed. In addition, slightly curved sabres were unearthed in many warrior tombs from the period. Also, in 2007, archaeologists unearthed Zazacatla, an Olmec-influenced city in Morelos. No stone tools had been unearthed from the cave prior. The crew investigates the planet, discovering mines that were recently unearthed and exposed.