Reformed Baptists (sometimes known as Calvinistic Baptists) are Baptists that hold to a Calvinist soteriology. They can trace their history through the early modern Particular Baptists of England. The first Reformed Baptist church was formed in the 1630s. The 1689 Baptist Confession of Faith was written along Reformed Baptist lines.
Groups calling themselves Strict Baptists are often differentiated from those calling themselves "Reformed Baptists," sharing the same Calvinist doctrine, but differing on ecclesiastical polity; "Strict Baptists" generally prefer a congregationalist polity.
The group of Strict Baptists called Strict Particular Baptists are Baptists who believe in a Calvinist or Reformed interpretation of Christian salvation. The Particular Baptists arose in England in the 17th century and took their name from the doctrine of particular redemption, while the term "strict" refers to the practice of closed communion.
Sovereign Grace Baptists in the broadest sense are any "Calvinistic" Baptists that accept God's sovereign grace in salvation and predestination. In the narrower sense, certain churches and groups have preferred "Sovereign Grace" in their name, rather than using the terms "Calvinism," "Calvinist," or "Reformed Baptist." This includes some who prefer the 1644 Baptist Confession of Faith to the 1689 Confession, and who are critical of Covenant theology.
All of these groups generally agree with the Five Points of Calvinism – Total Depravity, Unconditional Election, Limited Atonement, Irresistible Grace, and Perseverance of the Saints. Groups calling themselves "Sovereign Grace Baptists" have been particularly influenced by the writings of John Gill in the 18th century. Among American Baptists who have revived such Calvinist ideas were Rolfe P. Barnard and Henry T. Mahan, who organised the first Sovereign Grace Bible Conference in Ashland, Kentucky in 1954, though groups designated as Sovereign Grace are not necessarily connected to them.