President Roosevelt signed Social Security Act On August 14, 1935. It marked the beginning of OASDI(Old-Age and Survivors and Disability Insurance).

• 1935年8月14日,美国总统罗斯福签署了《社会保障法》,它标志着OASDI(Old-Age and Survivors and Disability Insurance,即“老年、遗属及残疾保险”,也就是美国人所称的社会保障)的诞生。