ATLANTA— Six days of funeral observances for former President Jimmy Carter began Saturday in Georgia, where he died on Dec. 29 at the age of 100. The first events reflected Carter’s climb up the political ladder, from the tiny town of Plains, Georgia, to decades on the global stage as a humanitarian and advocate for democracy. Here is what to know about the initial ceremonies and what happens next: The Start Honors Carter’s Deep Roots in Rural South Georgia The proceedings began at 10:15 a.m. EST Saturday with the Carter family arriving at Phoebe Sumter Medical Center in Americus. Former Secret Service agents who protected Carter served as pallbearers, walking alongside the hearse as it exited the campus on its way to Plains….