A "Tent Revival" is a religious gathering held outdoors under a large tent, often organized by Christian groups. These events typically feature preaching, singing, and prayer, aiming to inspire spiritual renewal and conversion among attendees. They are often characterized by a lively atmosphere and can attract large crowds. Tent revivals have historical roots in the 19th century, particularly in the United States, where they became popular during the Second Great Awakening. They are associated with evangelists like Billy Graham and Charles Finney, who used these gatherings to reach people in various communities.