Christianity Timeline By glitch0980 6 BCE The Birth of Jesus 1054 Separation of The Eastern Orthodox and Roman Catholic churches Period: 1096 to 1099 The FirstCrusade Period: 1147 to 1149 The Second Crusade Period: 1189 to 1192 The Third Crusade Period: 1200 to 1550 The Inquisition The Inquisition started throughout the twelfth century, and ended in the mid fifteenth century, so this time span is a rough showing. Period: 1202 to 1204 The Fourth Crusade Period: 1217 to 1221 The Fifth Crusade Period: 1228 to 1229 The Sixth Crusade Period: 1248 to 1254 The Seventh Crusade 1270 The Eighth Crusade 1529 The Rise of Protestantism