posted May 26 @ 03:02 PM by Jason Kottke · gift link The 250th birthday of the United States is coming up and I know many of us are having a tough time feeling celebratory because *waves hands around at everything* . To mark the occasion in a decidedly non-jingoistic manner, historian Heather Cox Richardson is producing a series of one-minute videos , each featuring one of “the many people, places, and events that have built our country and remind us of the power of each person to make history”. From the introductory video above: From the time of our country’s founding 250 years ago, the story of America has been one of the constant efforts of Americans — from all races, ethnicities, genders, and abilities — to make real the belief that we are all created equal and have a right to have a say in our democracy.…