The findings have included numerous baked-clay tablets, some of which were enclosed in clay envelopes stamped with cylinder seals. The documents record common activities, such as trade between the Assyrian colony and the city-state of Assur and between Assyrian merchants and local people. The trade was run by families rather than the state. The Kültepe texts are the oldest documents from Anatolia. Although they are written in Old Assyrian, the Hittite loanwords and names in the texts are the oldest record of any Indo-European language (see also Ishara). Most of the archaeological evidence is typical of Anatolia rather than of Assyria, but the use of both cuneiform and the dialect is the best indication of Assyrian presence.