Palpatine, at the end of his second term, was allowed to stay in power until the crisis was resolved. In 24 BBY, Dooku then helped found the Confederacy of Independent Systems with the formation of the Separatist Council, led again by Nute Gunray, on Raxus Prime, igniting the Separatist Crisis. When his first apprentice, Darth Maul, was defeated by Obi-Wan Kenobi, Sidious took on the former Jedi Count Dooku as his new apprentice. In 32 BBY, he began manipulating pivotal events, such as instigating the Naboo crisis, in which he used the Trade Federation, led by Viceroy Nute Gunray as a pawn, to lead Queen Amidala into calling for a " Vote of No Confidence" in Supreme Chancellor Finis Valorum, effectively replacing him and eventually winning the Battle of Naboo with assistance from the Gungans. He was inspired by the Resurrected Sith Empire, which dominated the galaxy over three millennia earlier. The Empire can be said to have begun with the scheming aspiration of the Sith Lord Darth Sidious, known as his alter ego Senator Palpatine of Naboo. An Empire that will continue to be ruled by this august body and a sovereign ruler chosen for life." ― Emperor Palpatine, in his Imperial Inaugural Address In order to ensure our security and continuing stability, the Republic will be reorganized into the first Galactic Empire, for a safe and secure society, which I assure you will last for ten thousand years. " We stand on the threshold of a new beginning. The Galactic Empire existed as a separate entity in one form or another for 157 years, until in 138 ABY, when it had been absorbed by a new organization. After the death of Count Dooku above Coruscant, the death of General Grievous on Utapau and finally the massacre of the leaders of the Confederacy of Independent Systems on Mustafar, Chancellor Palpatine (by then ruling with near-absolute power) began a purge of the Jedi Order, and then proclaimed himself Emperor of the galaxy and reorganized the Galactic Republic into "the first Galactic Empire" on the galactic capital, Coruscant. The Republic, which had lasted for at least 25,034 years, ended following a period of intense political turmoil and the subsequent devastation of the Clone Wars. The Galactic Empire, also known as the Old Empire, the First Galactic Empire, Palpatine's New Order, the Imperium or simply the Empire, was the galactic government established by Supreme Chancellor Palpatine to replace the Galactic Republic in 19 BBY and bring Sith rule to the galaxy.
Of a safe and secure society! We are an Empire that will stand for ten thousand years !" ―Palpatine
" We are an Empire ruled by the majority ! An Empire ruled by a new Constitution! An Empire of laws, not of politicians! An Empire devoted to the preservation of a just society.