Sten, one of the authors on vintageport.se have been celebrating September 10th with port wine every year since 1976, the year he fell in love with the wonderful enjoyment port wine brings.
His celebration on this day is due to his birthday, this year celebrated for 75 years. We all hope you will have a nice glass of Vintage Port that day.

Celebration of the Port Wine Day is also celebrated on September 10th on the day when its designation of origin was created, in 1756.