Divorce where the spouse requesting the divorce does not need to accuse the other spouse of wrongdoing but simply state irreconcilable differences with the other spouse, that they no longer get along in a material way. Prior to an increasing number of states creating the no-fault divorce which began during the 1970s, it was only possible to obtain a divorce by proving that the other spouse was at fault for the marriage not working. No-fault divorces are granted for reasons including incompatibility, irreconcilable differences, or irretrievable or irremediable breakdown of the marriage. Some states also allow incurable insanity as a basis for a no-fault divorce. Compare fault divorce.