Tribes recorded by the ethnonyms of "Serb" and "Croat" are described as a second, latter, migration of different people during the second quarter of the 7th century who do not seem to have been particularly numerous; these early "Serb" and "Croat" tribes, whose exact identity is subject to scholarly debate, came to predominate over the Slavs in the neighbouring regions. The bulk of Bosnia proper, however, appears to have been a territory between Serb and Croat rule and is not enumerated as one of the regions settled by those tribes.