César Vidal (Madrid, 1958) is a Spanish historian, writer and communicator who has been living in the United States since 2013. He has a PhD in History from UNED, and his thesis was entitled From Pentecost to Jamnia: Judeo-Christianity in Palestine in the 1st century. His thesis, initially published by Trotta, was republished by Planeta with the title The First Christians. He also hold a degree in Law from Madrid Complutense University, a doctorate from Alfonso X University with a thesis on the legal systems of revolutionary regimes such as in Russia in 1917 and Spain in 1936. He also has a doctorate in Theology and Philosophy from Logos University.