We all have heard Christians talking about the mark of the beast 666. In greek the mark of the beast" is called charagma, a brand put into animals to denote their ownership, just like how slaves, cows and properties are given a mark so that they denote their ownership In revelation 13 vs 18 This calls for wisdom: let the one who has understanding calculate the number of the beast, for it is the number of a man, and his number is 666 in the bible the number 6, signifies bad luck just like the number 4 in Chinese and south Korean cultures signifies the same thing. If you read revelations, it explains the future of the world and its political system and how it relates with christianity. 666 represents king Nero ceasar during his reign in the roman empire whose political system was evil to Christians, he burnt Christians on the stake and made sure they had a mark on their body so that nobody can sell to them or buy anything from them. Nowadays, 666 represent any political system that oppose christianity and want to discriminate against them such as communism and liberalism which have an history of killing Christians, burning churches and making sure Christians are exempted from economic activities.