NORTHAMPTON — In celebration of Polish Constitution Day, there will be Holy Mass at 6 p.m. Tuesday at St. Valentine’s Polish National Catholic Church, 127 King St.

After the liturgy, there will be a movie about the history of the Polish Constitution. Everyone is welcome to attend.

The Polish Constitution, referred to as the constitution of May 3 (1791), was the first democratic constitution in Europe which won the admiration of the world with its spirit of freedom, reform and brotherhood, according to the church.

But democracy was seen as a threat to the royalty who surrounded Poland and they banded together to crush this effort, according to the church. Austria, Germany and Russia formed an “Unholy Alliance” in order to eliminate Poland and democracy from the map of Europe, and Poland ceased to exist officially for almost 100 years on June 25, 1795, according to the church.

Further information is available by contacting the Rev. Adam Czarnecki, pastor, St. Valentine’s Church, at 584-0133.