The 22nd century is a century of the Christian Era or Common Era in accordance with the Gregorian calendar. It is the upcoming century, beginning on January 1, 2101 and ending on December 31, 2200.

By 2200, it is predicted that a Type I civilization will form under the Kardashev scale, according to Nikolai Kardashev's extrapolation of 1% energy usage growth per year.

According to the UN Population Bureau, life expectancy in 2200 will be around 100 for developed countries and the world population will be about 22.8 billion. However, the UN has warned that these projections could be invalidated by any change and progress in future life extension technology and discoveries, as well as changes in future birthrates.

In his book The Next 100 Years, American political scientist George Friedman predicts that as the century begins, an ongoing confrontation between an increasingly powerful Mexico and the United States will be taking place. Mexico will be an economically and militarily powerful country capable of challenging the United States, while a Mexican majority in southern regions of the United States will have made them a de facto extension of Mexico, with increasing secessionist sentiment. Both countries will be competing for dominance over North America, which will remain the international center of gravity throughout the next few centuries.

Eunice Kathleen Waymon (February 21, 1933 – April 21, 2003), better known by her stage name Nina Simone /ˈniːnə sɨˈmoʊn/, was an American singer, songwriter, pianist, arranger, and civil rights activist widely associated with jazz music. Simone aspired to become a classical pianist while working in a broad range of styles including classical, jazz, blues, folk, R&B, gospel, and pop.

Born the sixth child of a preacher's family in North Carolina, Simone aspired to be a concert pianist as a child. Her musical path changed direction after she was denied a scholarship to the prestigious Curtis Institute of Music in Philadelphia, despite a well-received audition. Simone was later told by someone working at Curtis that she was rejected because she was black. She then began playing in a small club in Philadelphia to fund her continuing musical education to become a classical pianist and was required to sing as well. She was approached for a recording by Bethlehem Records, and her rendition of "I Loves You Porgy" became a smash hit in the United States in 1958. Over the length of her career, Simone recorded more than 40 albums, mostly between 1958 — when she made her debut with Little Girl Blue — and 1974.

Derek Cabrera (born 1970) is an educational theorist, systems thinking expert, inventor, and cognitive scientist. He is best known for formulating the DSRP theory and method of thinking.

Cabrera received a Ph.D. from Cornell University with a dissertation entitled Systems Thinking, a synthesis of his research in complexity science and cognition. It was recognized as an important contribution to several fields. Cabrera focused his work on the importance of the intersection of ontology and epistemology in understanding human thought and our interactions with the world around us. By training an evolutionary epistemologist, Cabrera advances that knowing how we know things is equally important to what we know. He further suggests that all humans build knowledge, not by merely receiving information, but through the interactive, dynamic relationship between information and thinking, which he terms DSRP. His later book, Thinking at Every Desk, expounds upon these ideas and was recently republished by W.W. Norton.

Sherlock Holmes ( /ˈʃɜrlɒk ˈhoʊmz/) is a fictional detective created by Scottish author and physician Sir Arthur Conan Doyle. The fantastic London-based "consulting detective", Holmes is famous for his astute logical reasoning, his ability to adopt almost any disguise, and his use of forensic science skills to solve difficult cases.

Holmes, who first appeared in publication in 1887, was featured in four novels and 56 short stories. The first novel, A Study in Scarlet, appeared in Beeton's Christmas Annual in 1887 and the second, The Sign of the Four, in Lippincott's Monthly Magazine in 1890. The character grew tremendously in popularity with the first series of short stories in Strand Magazine, beginning with A Scandal in Bohemia in 1891; further series of short stories and two novels published in serial form appeared between then and 1927. The stories cover a period from around 1880 up to 1914.

All but four stories are narrated by Holmes's friend and biographer, Dr. John H. Watson; two are narrated by Holmes himself ("The Blanched Soldier" and "The Lion's Mane") and two others are written in the third person ("The Mazarin Stone" and "His Last Bow"). In two stories ("The Musgrave Ritual" and "The Gloria Scott"), Holmes tells Watson the main story from his memories, while Watson becomes the narrator of the frame story. The first and fourth novels, A Study in Scarlet and The Valley of Fear, each include a long interval of omniscient narration recounting events unknown to either Holmes or Watson.

The Residents are an American art collective best known for avant-garde music and multimedia works. The first official release under the name of The Residents was in 1972, and the group has since released over sixty albums, numerous music videos and short films, three CD-ROM projects and ten DVDs. They have undertaken seven major world tours and scored multiple films. Pioneers in exploring the potential of CD-ROM and similar technologies, The Residents have won several awards for their multimedia projects. Ralph Records, a record label focusing on avant-garde music, was started by The Residents.

Throughout the group's existence, the individual members have ostensibly attempted to operate under anonymity, preferring instead to have attention focused on their art output. Much outside speculation and rumor has focused on this aspect of the group. In public, the group appears silent and costumed, often wearing eyeball helmets, top hats and tuxedos - a long-lasting costume now recognized as their signature iconography. Their albums generally fall into two categories: deconstructions of Western popular music, or complex conceptual pieces, composed around a theme, theory or plot. They are noted for surrealistic lyrics and sound, disregard for conventional music composition, and the over the top, theatrical spectacle of their live performances.