Phineas and Ferb is an American animated musical-comedy television series created by Dan Povenmire and Jeff "Swampy" Marsh for Disney Channel and Disney XD. The series originally aired on the networks for four seasons between 2007 and 2015 and is scheduled to return for two additional seasons beginning in 2025. The show follows stepbrothers Phineas Flynn and Ferb Fletcher, who spend their summer vacation engaging in elaborate projects and exciting adventures. Their activities often frustrate their older sister, Candace, who tries to expose them to their mother. The series also features the subplot of the boys' pet platypus, Perry, who works as a secret agent to thwart the evil plans of the mad scientist Dr. Heinz Doofenshmirtz. Phineas and Ferb received high viewership and critical acclaim, winning several Emmy Awards. The show's success led to the development of merchandise, spin-offs, and movies, including the 2011 film "Phineas and Ferb the Movie: Across the 2nd Dimension" and the 2020 release "Phineas and Ferb the Movie: Candace Against the Universe." Critics praised the show's writing and humor, while some criticized its lack of originality. The series is known for its appeal to a wide audience and has become one of Disney Channel's most successful animated franchises.

Phineas P. Gage (1823–1860) is a renowned figure in the fields of neurology, psychology, and neuroscience due to his remarkable survival and subsequent behavioral changes after an accident in which a large iron rod penetrated his head. This incident, known as the "American Crowbar Case," sparked extensive 19th-century debates about the mind, brain, and cerebral localization, laying the groundwork for understanding the brain's role in personality determination and the specific mental changes resulting from brain damage. Despite the widespread attention and curiosity surrounding Gage's case, there is limited factual information about his life before and after the injury, leading to various theories and interpretations.Before the accident, Gage was described as a healthy, strong, and active young man, known for his iron will and robust physical attributes. He was working as a blasting foreman on railway construction projects when the tragic incident occurred. The details of the accident, which took place in September 1848, involved Gage inadvertently coming into contact with a tamping iron while preparing a blast, resulting in the iron rod penetrating his skull.Following the injury, Gage's reported behavioral changes and personality alterations have been a subject of fascination and debate. While historical accounts have often exaggerated and distorted his post-injury condition, a social recovery hypothesis suggests that Gage's work as a stagecoach driver in Chile may have contributed to his improved functionality and social adaptation in later life.Phineas P. Gage's enduring influence

Phineas Parkhurst Quimby (February 16, 1802 – January 16, 1866) was an influential figure in American spiritual and healing movements. Born in Lebanon, New Hampshire, Quimby had limited formal education but developed a keen interest in the mind's ability to impact the body after experiencing a self-cure from consumption. His explorations led him to mesmerism, a popular practice at the time, but he was not a follower of Charles Poyen as initially suggested. Instead, Quimby's interest was piqued by encounters with practitioners like Robert Hanham Collyer and Lucius Burkmar, with whom he later toured, demonstrating mesmeric practices and healing people of ailments. Quimby's approach to healing centered on the belief that disease stemmed from false beliefs and that understanding the truth could bring about a cure. He emphasized the power of explanation and correction of mental errors in restoring health. This philosophical foundation laid by Quimby would go on to influence the New Thought movement, leaving a lasting impact on spiritual and metaphysical thought in America.

Phineas Howe Young (February 16, 1799 – October 10, 1879) was a significant figure in the early Latter Day Saint movement and a Mormon pioneer. As the older brother of Brigham Young, the president of the LDS Church and the first governor of the Territory of Utah, Phineas played a crucial role in the church's development. Born in Hopkinton, Massachusetts, Phineas initially pursued a career as a Methodist preacher before being introduced to the Book of Mormon by missionary Samuel H. Smith. He and his brothers, including Brigham Young, were baptized into the Latter Day Saint Church of Christ in 1832. Phineas was an ordained elder and served as a missionary in New York and Upper Canada. He was among the first Mormon pioneer company to reach the Salt Lake Valley in 1847 and settled in Salt Lake City. Throughout his life, Phineas took on various leadership roles within the church and Utah Territory, including serving as a missionary in England and being elected to the Utah Territorial Legislature. Phineas Howe Young passed away in Salt Lake City at the age of 80, leaving behind a legacy of dedication and service to the LDS Church and the community.

Phineas Fisher, also known as Phineas Phisher and Subcowmandante Marcos, is an enigmatic hacktivist and self-proclaimed anarchist revolutionary. Notable hacks attributed to Fisher include breaches of Gamma International, Hacking Team, the Sindicat De Mossos d'Esquadra (SME - the union of the Catalonian police force), and the ruling Turkish Justice and Development Party. These hacks have resulted in the release of sensitive information, including client lists, price lists, source code, and personal data of police officers. Fisher's modus operandi typically involves following each hack with a communique containing technical details, ASCII art, poetry, and leftist and anarchist propaganda. In 2019, Fisher offered a bounty of up to US$100,000 for successful hacktivism and claimed to have paid out US$10,000 the following year. Despite the controversial nature of Fisher's actions, the figure's identity remains undisclosed. Fisher's exploits have drawn attention from prominent organizations such as WikiLeaks, and have sparked debates around the ethics and implications of hacktivism.