#OTD in 1914.
The first English-language performance of George Bernard Shaw's comedy Pygmalion at His Majesty's Theatre is given in London starring Mrs. Patrick Campbell and Herbert Beerbohm Tree, and famously including the Act III line "Not bloody likely!".
Shaw's play has been adapted many times, most notably as the 1938 film Pygmalion, the 1956 stage musical My Fair Lady, and its 1964 film version.
Pygmalion at PG:
https://gutenberg.org/ebooks/3825