Christian Zionism wanes in the first decades of the 20th century.
Two events will return Christian Zionists to the public square and usher in a new wave of fervent political support for Israel.
The first is the Six Day War of 1967 in which Israel captures the Biblical heartland of Judea and Samaria and reunifies Jerusalem.
The second event is the founding of the Moral Majority in 1979 by Rev. Jerry Falwell in reaction to Roe v. Wade.
Photo credit: Getty Images