Marriage appears to speed up the advancement of male historians but slow down that of female historians, according to new data from the American Historical Association. The new study by Robert B. Townsend, deputy director of the AHA comes from a survey of 2,240 associate and full professors of history. One of the issues debated in many disciplines has been the slow path of promotion from associate to full professor for women as compared to men. The new data from the AHA suggest that marriage has a different impact on men and women in the history profession.