As pastor of a new church start, I found it necessary to take time very early on in the life of the church to establish our identity. One of my Sunday morning teachings was on our denomination, the Christian Church (Disciples of Christ). This is not a super in-depth historical presentation, but it's a simple overview of who we are: past, present, and future.
Taking time to share this with the folks was beneficial, especially for those that have been in the denomination for a while, and don't know much about the history. And, even for folks that are joining the new church that come from a different Christian tradition, or no religious background what so ever. It was worth the time to do this.
Content on the powerpoint is from disciples.org & obrahispana.org