The Tennis Court Oath (David) to take the oath, Martin-Dauch, is shown in the lower right hand corner and provides a counterpoint to the general enthusiasm. David also drew all the faces in detail so that every figure was recognisable. Above are large windows with smiling figures of the public. In the 18th century, an oath had a sacred value and guaranteed a person would be faithful to their word, as in David's own "The Oath of the Horatii". During the French Revolution, collective oaths like the tennis court oath were considered as a factor in national unity and national unanimity. The tennis court oath
Oath of office of the President of the United States me God, shall be omitted in all cases where an affirmation is admitted instead of an oath." In contrast, the oath of the president is the only oath specified in the Constitution. It does not include the closing phrase "So help me God", and it also allows for the optional form of an "affirmation" which is not considered an oath. In practice, however, most presidents, at least during the last century, have opted to take the "oath" (rather than an "affirmation"), to use a Bible to do so, and also to close the oath with the customary phrase. The earliest