Estimated date of  May 1998 (but that could slip).
It happened sometime in May 1998.
It definitely happened in May 1998.
Under the presumption that the postal monopoly applies only to the final delivery process, where scale economies are greatest, the notion is that a discount should be offered to competitors who do part of the work and then turn the mail over to USPS.
The woman is at a party.
The patriots in the country were left unmoved by it.
Can you go to that persons house.
A young girl is standing above the crowd in a pinwheel.
People are at the train station.