"36 U.S.C. §125 states this commemorative day is designated the first Sunday after Labor Day. U.S. President Jimmy Carter declared the first National Grandparents Day in 1978 in a presidential proclamation."
This year's presidential proclamation by President Barack Obama can be read on the White House Briefing Room website.
We are regularly asked about grandparent rights and responsibilities, so we have a few pages on our website with information on the topic: