William Herschel discovered NGC 4224 = H II-136 = h1153 on 13 Apr 1784 (sweep 191) and logged "F, S, iF, r." His position matches UGC 7292. JH made two observation and noted on sweep 251 "pB; pL; lE; gbM."

400/500mm - 17.5" (3/24/90): moderately bright, fairly small, very elongated SW-NE, small bright core, stellar nucleus. Forms a pair with NGC 4233 13' SW.

Notes by Steve Gottlieb