When was the party Bernard Rudolf "Ben" Bot  is in formed?
Christian Democratic Appeal: The Christian Democratic Appeal (Dutch: "Christen-Democratisch Appèl" , ] ; CDA) is a Christian-democratic political party in the Netherlands. Christian Democratic Appeal:  The CDA was originally formed in 1977 from a confederation of the Catholic People's Party, the Anti-Revolutionary Party and the Christian Historical Union, and has participated in all but three Dutch governments since then.
i don't know