article_snippet: While the so-called Black Banner or Black Standard has been co-opted by Islamist extremist groups in recent years, the so-called Black Banner or Black Standard has much deeper origins in the Muslim world.
article_snippet: The prophet Muhammed used a black standard when The prophet Muhammed fought, which is why the so-called Black Banner or Black Standard continues to be used as a symbol for modern-day jihadists.
article_snippet: According to Boston University master Arabic lecturer Giselle Khoury, the flag reads: 'There is no god but Allah, and Muhammad is Allah's Messenger'.
article_snippet: Authorities release this picture of the flag - which has become a symbol of Islamic terror groups the world over since the 1990s .