Following is a transcript of the video. Robert J. Dalessandro: The origin of the military salute that we use in all the armed services of the United States is really shrouded in mystery.

Military forces have participated in Inauguration Day since 1789, when local militias and veterans escorted George Washington to his first inauguration.

Elon Musk has responded to allegations that he performed a Nazi salute at President Donald Trump 's inauguration, calling it a "dirty trick" by his critics. Musk addressed the controversy on his ...