Once you have enabled AI Servo mode and selected the correct focus points (if you want to adjust them from how the camera is currently set up), the only control you need is the shutter button -- just pressing this halfway will enable focus tracking on the focus points that are enabled.
The Social Security Act was enacted August 14, 1935. The Act was drafted during President Franklin D. Roosevelt's first term by the President's Committee on Economic Security, under Frances Perkins, and passed by Congress as part of the New Deal.
After some brief remarks, President Johnson signed into law the Medicare Social Security Amendments. Johnson gave the first souvenir pen to Mrs. Truman and the next to President Truman and then the remainder of the pens to guests on the platform.on Archives.gov). This act was signed into law by President Lyndon Johnson on July 30, 1965, in Independence, MO. It established Medicare, a health insurance program for the elderly, and Medicaid, a health insurance program for the poor.