February 23: Defender of the Fatherland Day in Russia; Mashramani in Guyana (1970); National Day in Brunei (1984) * 1820 – British authorities arrested the conspirators of the Cato Street Conspiracy, an attempt to murder Prime Minister Lord Liverpool and all the British cabinet ministers. * 1903 – The Cuban-American Treaty was finalized, allowing the United States to perpetually lease Guantánamo Bay from Cuba for the purposes of operating coaling and naval stations. * 1945 – American photographer Joe Rosenthal took the Pulitzer Prize-winning photograph Raising the Flag on Iwo Jima during the Battle of Iwo Jima in World War II, an image that was later reproduced as the U.S. Marine Corps War Memorial. * 1947 – The International Organization for Standardization (ISO) was founded