sentences:  Primarily a football venue and the home of First Vienna FC, it has also occasionally played host to Austrian international rugby union matches and the Vienna Vikings American Football team.The stadium was opened in 1921 and was contemporaneously considered the best and biggest sporting venue in continental Europe.The Austrian national football side played numerous matches there in the 1920s and 1930s, attracting the ground's record attendance of 85,000 people when playing Italy in 1923.