Graham preached Christianity to nearly 215 million people in more than 185 countries and territories. He also preached to hundreds of millions more through television, videos, movie, and webcasts. He went to over 41 evangelistic crusades. He began this ministry in 1947, and kept doing it until recently. He would often use a big area, such as a stadium, park, or a large street to speak at. Groups of up to 5,000 people would often sing in choir at his meetings. Graham would preach the gospel and then invite people to come forward. In 1992, one-quarter of the 155,000 in his Moscow audience came for salvation upon his request.