"I wanted to share with you some news clippings that I have found regarding the history of marriage in the Soviet Union. It turns out that the Soviet Union had toyed with marriage with devastating results. I believe that this is the reason why they are so against gay marriage now. By studying what the Soviets did, maybe we can avoid repeating their mistakes. It saddens me that this piece of history has not been brought into the debate. I guess history gets lost easily."
Russian Effort to Abolish Marriage (1926)
New Marriage in Soviet Russia (1929)
newspapers?id=1Z9QAAAAIBAJ& sjid=vyEEAAAAIBAJ&pg=3862, 5996717&dq=soviet+union+ marriage&hl=en
Soviet War on Religion
Marriage gets a new look (1960)
newspapers?id=zA9QAAAAIBAJ& sjid=dlUDAAAAIBAJ&pg=7489, 1438660&dq=soviet+union+ marriage&hl=en
Yahoo answer (not a reliable source but has a nice summary)