Linear B seems to have only been used for administration. In all the thousands of clay tablets, a relatively small number of different "hands" (or writers) have been detected: 45 in Pylos (west coast of the Peloponnese, in southern Greece) and 66 in Knossos (Crete). The script may have only been used by a guild of professional scribes. These scribes worked at the different palaces: when the palaces were destroyed, the script disappeared.