Qatar’s historic flag was plain red, in correspondence with the red banner traditionally used by the Kharjite Muslims. In the 19th century, the country modified its entirely red flag with the addition of a white vertical stripe at the hoist to suit the British directive. After this addition, Sheikh Mohammed bin Thani officially adopted a patterned purple-red and white flag which bore a strong resemblance to its modern derivative. Several additions were made to the Qatari flag in 1932, with the nine-pointed serrated edge, diamonds and the word “Qatar” being integrated in its design. The maroon colour was standardised in 1949. In the 1960s, Sheikh Ali Al Thani removed the wording and diamonds from the flag. The flag was officially adopted on 9 July 1971 and was virtually identical to the 1960s flag, with the exception of the height-to-width proportion.