Some pyramidologists claim that the Great Pyramid of Giza has encoded within it predictions for the Exodus of the Hebrews from Egypt,[4] the crucifixion of Jesus,[4] the start of World War I,[5][6] the founding of modern-day Israel in 1948, and future events including the beginning of Armageddon; this was discovered by using what they call "pyramid inches" to calculate the passage of time where one British inch equals one solar year.