[2] Historians believe that Baekje was established by immigrants from Goguryeo who took over Mahan, while Byeonhan and Jinhan were succeeded by Gaya and Silla respectively.

[9] The primary contemporary lexical evidence comes from a few glosses in Chinese and Japanese histories, as well as proposed etymologies for old place names.

[19] Alexander Vovin argues that the only Baekje words from the Nihon Shoki found throughout Japonic, such as sema 'island' and kuma 'bear', are those also common to Koreanic.

[17] The Middle Korean text Yongbieocheonga transcribes the name of the old Baekje capital 'Bear Ford' as kwomá nolo, closely matching two of the words from the Nihon Shoki.

[24][25] The Baekje placenames in chapter 37 of the Samguk sagi are not glossed, but several of them include the form 夫里 pju-liX, which has been compared with later Korean pul 'plain'.

[26] Wooden tablets dated to the late Baekje era have been discovered by archaeologists, and some of them involve the rearrangement of Classical Chinese words according to native syntax.

[30] A tablet found in the Baekje-built temple of Mireuksa, originally thought to be a list of personal names, appears to record native numerals, possibly a series of dates.