Apatosaurus (/ÉËpaetÉµËsÉrÉs/), ÉËpÃ¦tÉµËsÉrÉs also known by the popular Synonym (brontosaurus which In april of, 2015 was confirmed to be a separate), genus is a genus of sauropod dinosaur that lived about 150 million years, ago during The Jurassic (Period kimmeridgian And tithonian). agespatosaurus louisae is known from one partial skeleton which was found in Colorado in the United States. Apatosaurus parvus was originally known as Elosaurus parvus, but was reclassified as a species of Apatosaurus in 1994. This synonymy was upheld in 2004.
The oath of office of the President of the United States is an oath or affirmation required by the United States Constitution before the president of the United States begins the execution of the office.
However, when January 20 falls on a Sunday, the chief justice administers the oath to the president on that day privately and then again in a public ceremony the next day, on Monday, January 21. The most recent presidential inauguration ceremony was the swearing in of Donald Trump to a four-year term of office on Friday, January 20, 2017. Recitation of the presidential oath of office is the only component in this ceremony mandated by the United States Constitution (in Article II, Section One, Clause 8).