Original: The Act was passed in the British and therefore unrepresentative Irish Parliament  with substantial majorities achieved in part (according to contemporary documents) through bribery, namely the awarding of peerages and honours to critics to get their votes.
Simplified: The Act was passed in the British and therefore unrepresentative Irish Parliament  with substantial majorities achieved in part (according to contemporary documents) through bribery, namely the awarding of peerages and honors to critics to get their votes.