Teachers at nine high schools in northeastern Australia discovered days before an ancient history exam that they had mistakenly taught their students about the wrong Roman ruler — Augustus Caesar instead of his predecessor, Julius Caesar. The students in Queensland ended up being exempt from the statewide exam on Wednesday while Education Minister John-Paul Langbroek said he would investigate the mix-up, describing the experience for the students as "extremely traumatic." Since the error in the curriculum was discovered on Monday, schools applied — and were granted — an exemption from the exam for their students, even as panicked high schoolers...