It has been claimed that the Senkaku Islands dispute predates Japan's 1969 establishment of its ADIZ over the islands, although there is no record of the People's Republic of China announcing a claim to the Senkaku islands in 1969 or before.
The Senkaku Islands dispute predates Japan's 1969 establishment of its ADIZ over the islands. This was what it has been claimed. There is no record of the People's Republic of China. This was what it has been claimed. This China is announcing a claim to the Senkaku islands in 1969.