I have done a little study on John Nelson Darby and the Plymouth Brethren. (1800-1882).
His principles of dispensationalism was the Old Testament as the norm.
Selective hyper-literalism in interpretation.
A sharp distinction drawn between national Israel and the Church. He believed the the Church is not in the prophets, therefore, Messianic promises to Israel can be fulfilled only in national Israel and in the future.
The significance of the term "Dispensational" has been divisions of God's dealings in dispensations, but the seven-fold plan offered by C. I. Scofield is the best known: Innocence (before Adam's sin), Conscience (to the time of Noah), Human Government (from Noah to Abraham), Promise (from Abraham to the Ten Commandments), Law (under the Ten commandments. Grace (from the time of Christ's first coming to His second coming, and Kingdom (the millennium).
In my opinion, the Scofield Bible is an interpretation in Dispensationalism as viewed by the Plymouth Brethren. Lewis Sperry Chafer (1871-1952), a student and colleague of Scofield, author of the 8-vollume "Systematic Theology" (1947), "unabridged, Calvinistic, premillennial, dispensational," the best summation of dispensational theology. As the first president of Dallas Theological Seminary and editor of the journal "Bibliotheca Sacra," Chafer has been the most influential dispensationalist theologian in the United States. John Hagee has followed in his footsteps as did Jerry Falwell.
The influence of dispensationalism: Avery strong in Baptist, especially independent Baptists, and Pentecostal groups (including the Assemblies of God); also pockets of strength among churches of the Reformed tradition. Dispensationalism as I see, represents a minority view that represents a major departure from the Protestant theological heritage.