U.S. history scores for White twelfth-graders at all but the 10th percentile were higher in 2010 than in 1994. Scores for Hispanic twelfth-graders at the 25th and 50th percentiles were higher in 2010 than in 1994. Within all reported racial/ethnic groups, U.S. history scores for twelfth-graders at all five selected percentiles were not significantly different in 2010 when compared to 2006.