Here is the download link for the PDF.
-- China's claim to the South China Sea evolved after 1914.
-- No formal claim until 1935, in response to the French Claims
-- The 9/11 dash line first came out in 1947, from ROC government
-- the original names of the South China Sea islands were English names, because there were no Chinese names
-- no maps from China show any South China Sea islands as Chinese until 1909.
Remember, quiz on geography.