 He followed this by orchestrating the greatest and widest piece of social legislation Ireland had yet seen, the "Land (Purchase) Act (1903)" through Parliament.The Act provided generous bonus-subsidy terms to landowners on sale, the Irish Land Commission overseeing the new landowner's low interest annuities.O'Brien saw his achievement as having guided the official nationalist movement into endorsement of a new policy of "conference plus business" and of having set in motion events of decisive importance in reversing the consequences of centuries of alien domination.