President Obama on Monday became the first American president to refer to gay rights in an inaugural address, drawing effusive praise from gay rights advocates for his strong embrace of the cause and reflecting how much his views have changed. “Our journey is not complete until our gay brothers and sisters are treated like anyone else under the law,” the president said, “for if we are truly created equal, then surely the love we commit to one another must be equal as well.” He invoked the Stonewall riots of 1969, a landmark event in the history of the gay rights...