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
Tennis court been used at the Australian Open since 1988 and the US Open since 1978. "Carpet" in tennis means any removable court covering. Indoor arenas store rolls of rubber-backed court surfacing and install it temporarily for tennis events, but they are not in use any more for professional events. A short piled form of artificial turf infilled with sand is used for some outdoor courts, particularly in Asia. Carpet is generally a fast surface, faster than hardcourt, with low bounce. Notable tennis tournaments previously held on carpet courts were the WCT Finals, Paris Masters, U.S. Pro Indoor and Kremlin Cup. Since