Usurper (lat. usurpare = to seize for use, to use) is a derogatory term used to describe either an illegitimate or controversial claimant to the power; often, but not always in a monarchy, or a person who succeeds in establishing himself as a monarch without inheriting the throne, or any other person exercising authority unconstitutionally. It may also be applied to an official acting ultra vires, outside his authority or jurisdiction.

Some famous examples considered usurpers are Pope Leo IX, Henry IV of England, Catherine II of Russia, Miguel of Portugal and Habibullah Ghazi of Afghanistan.^{[citation needed]}

Usurp Synapse was an screamo band from Indiana. The group combined fast and frantic grindcore influenced drumming and guitar work, and raw screams.

Usurp was born in Lafayette, IN. Through numerous line-ups they continued to push the envelope of the then-bugeoning "screamo" sub-sub-genre of punk rock. Their music was available on several compilations and 7" records, including a split release with Jerome's Dream, with whom they toured the United States, on Clean Plate Records. All their releases have been compiled and released on a discography CD, Disinformation Fix, on Alone Records. Antonio Leiriao moved from New York to Indiana to sing for the band in 1999.

The band utilized unconventional marketing methods, such as a die-cut album cover folded into the shape of a penis entering a vagina, and the inclusion of a razor with a record that promoted suicide on Electric Human Project.

Former members played in Fax Arcana, who have since disbanded.

They reformed as a 4-piece in the year 2004, recorded a full length album, then unfortunately had to cancel a UK tour in 2005 which was supposed to be with phoenix bodies. They have been inactive since.

Hassan-i Sabbāh (Persian: حسن صباح‎, 1050s–1124) was a Persian-ArabNizārī Shi'a Ismā'īlī Muslim missionary who converted a community in the late 11th century in the heart of the Alborz Mountains of northern Iran. The place was called Alamut and was attributed to an ancient king of Daylam. He founded a group whose members are sometimes referred to as the Hashshashin or "Soldiers" to protect from attackers outside of Iran.

Hassan is thought to have written an autobiography, which does not survive but seems to underlie the first part of an anonymous Isma'ili biography entitled Sargudhasht-i Sayyidnā. The latter is known only from quotations made by later Persian authors. Hassan also wrote a Persian treatise on the doctrine of ta'līm, i.e. the teachings of the imam. The text is no longer extant, but fragments are cited or paraphrased by al-Shahrastānī and several Persian historians. He is the original Grand Master creating many of its main principles and foundations.

The possibly autobiographical information found in Sargudhasht-i Sayyidnā is the main source for Hassan's background and early life. According to this, Hassan-i Sabbāh was born in the city of Qom (modern Iran) in Persia in the 1050s to a family of Twelver Shī‘ah. His father was an Arab claiming Yemeni descent, who left the Sawād of Kufa hej (modern Iraq) to settle in the (predominantly Shi'a) town of Qom.

Neil Arthur Perry (born 29 June 1957) is an Australian chef, restaurateur, author and television presenter. He also is the co-ordinator for Qantas Flight Catering under his company Rockpool Consulting and has a food brand sold under his name, available at Woolworths Supermarkets.

Perry co-owns and is executive chef of restaurants in Australia. In Sydney his current stable consists of three restaurants located in the city's CBD: his flagship fine-diner Rockpool, modern Chinese restaurant Spice Temple, and factory-job steakhouse Rockpool Bar & Grill. The original incarnation of Rockpool Bar & Grill meanwhile is located in Melbourne. Former restaurants operated by Perry include Wockpool and XO, both which have since closed.^{[not in citation given]}

Perry was born in Sydney and attended Newington College and Drummoyne High School. At Newington he wasn't allowed to have long hair and so he used to grow his hair in the holidays and roll it up in combs when he went back to school. The school sergeant recognised what he was doing and sent him to the barber to have it cut off. In Year 10 he rang his mother and said; "I'm leaving school." So he left and went to Drummoyne High and didn't cut his hair for two years. That was how a ponytail became his signature look.