Complex sentence: Father's Day in Argentina is celebrated on the third Sunday of June, but there have been several attempts to change the date to August 24, to commemorate the day on which the "Father of the Nation" José de San Martín became a father.
Split into simpler sentences: Father's Day in Argentina is celebrated on the third Sunday of June. There have been attempts to change the date to August 24, to commemorate the day on which the "Father of the Nation" José de San Martín became a father.