was reduced to 60 years, and again by that of 2 & 3 Wm. IV. c. 71, to 20 years. In the American states, by statute, the time of legal memory is generally fixed at a period corresponding to that prescribed for actions for the recovery of real property, usually about 20 years. See 2 Bl. Comm. 31; Miller v. Gar- lock, 8 Barb. (N. Y.) 103.