Baptists in South Africa have developed along lines similar to other denominations of their day (e.g. the Dutch Reformed Church). However, there are six distinct waves of development within Baptist history in South Africa (including an emerging wave) that showcase the growth, development, digressions, limitations and transformation that has taken place in the Baptist denomination in South Africa. These waves are a tremendous help to the Baptist Union of Southern Africa (BUSA) as they seek to be faithful witnesses in the 21st century and beyond. It has become clear: If BUSA is to succeed within the emerging wave of mission and development, it will need a new, updated map to guide them where many have not been before - or BUSA could simply fade into irrelevance in South Africa, impacting other movements and denominations in turn.