Before, prior to. There is no difference between these two except length and a certain affectedness on the part of 'prior to.' To paraphrase Bernstein, if you would use 'posterior to' instead of 'after,' then by all means use 'prior to' instead of 'before.
Bill BrysonAnd before long there will be no more milk in bottles delivered to the doorstep or sleepy rural pubs, and the countryside will be mostly shopping centers and theme parks. Forgive me. I don't mean to get upset. But you are taking my world away from me, piece by little piece, and sometimes it just pisses me off. Sorry.
Bill Bryson... it occurred to me that never again would he be seven years, one month and six days old, so we had better catch these moments while we can.
Bill BrysonI had to drive to Minneapolis once, and went on a back road just to see the country. But there was nothing to see. It's just flat and hot, and full of corn and soybeans and hogs. Every once in a while you come across a farm or some dead little town where the liveliest thing is the flies.
Bill Bryson