Yes, speaking in tongues began when the Holy Spirit filled the waiting disciples in Acts 2:4. “And they were all filled with the Holy Spirit and began to speak with other tongues, as the Spirit was giving them utterance.” Today, Christians speak in tongues when they are “baptized” in the Holy Spirit. Some call it a prayer language. Acts 10:46, 1 Timothy 2:8, 1 Corinthians 14:2, 4-5, 13-14, 18, 22 and 39