When did corrie ten boom speak in tongues?

Corrie ten Boom, the Dutch Christian who helped many Jews escape the Holocaust, spoke in tongues during her spiritual experiences, particularly during her time in concentration camps and later in her ministry. While there isn't a specific date or event widely documented for her speaking in tongues, it was part of her broader religious experiences and encounters with the Holy Spirit. She often emphasized the importance of faith and the power of prayer throughout her life and ministry.