In time phrases we often use singular noun without an article. Also if we are talking about a specific time. The flats were built the previous year. They were having a party the following Saturday. Place-names and the article.
Most place names are with out the .
Some names take the , specially compound names and plural names. He sat down in the comfortable, old leather armchair. Mum, there's a gorgeous-looking man at the door. She's quite a star. We waited for half an hour.