Circa (from Latin, meaning "around"), usually abbreviated c. or ca. (also circ. or cca.), means "approximately" in the English language, usually referring to a date. Circa is widely used in genealogy and historical writing when the dates of events are not precisely known.

When used in date ranges, the term "circa" is applied before each approximate date, while dates without "circa" immediately preceding them are generally assumed to be known with certainty.

Examples:

Justin Randall Timberlake (born January 31, 1981) is an American singer, actor, and businessman. He achieved early fame when he appeared as a contestant on Star Search, and went on to star in the Disney Channel television series The New Mickey Mouse Club, where he met future bandmate JC Chasez. Timberlake became famous in the late 1990s as the lead singer and youngest member of the boy band 'N Sync, whose launch was financed by Lou Pearlman.

In 2002, he released his debut solo album, Justified, which sold more than seven million copies worldwide. The album was a commercial success, spawning the hits "Cry Me a River" and "Rock Your Body". Timberlake continued his success with his second solo album, FutureSex/LoveSounds (2006), debuting at number one on the Billboard 200 chart, and produced the US number-one hit singles "SexyBack", "My Love", and "What Goes Around... Comes Around".

Timberlake has won six Grammy Awards and four Emmy Awards. His first two albums made him one of the most commercially successful singers in the world, each selling in excess of 7 million copies. He also has an acting career, having starred in films such as The Social Network, Bad Teacher and Friends with Benefits. His other ventures include record label Tennman Records, fashion label William Rast, and the restaurants Destino and Southern Hospitality.

Conor Maynard (born 21 November 1992) is a British singer from Brighton who is currently signed to EMI subsidiary, Parlophone. Maynard rose to success in 2012 when he was nominated for, and subsequently won, MTV's Brand New for 2012 award. His debut single, "Can't Say No", was released in the United Kingdom on 16 April 2012.

On May 20, 2006, Maynard signed up to online video site YouTube and uploaded his very first cover track "Breathe" by British musician Lee Carr. on December 1, 2008. Throughout 2009-present, Maynard uploaded cover versions of songs with rapper and close friend, Anthony "Anth" Melo who resides in Virginia. Together they have covered a variety of popular artists, including: Chris Brown ("Crawl"), Taio Cruz ("Dynamite"), Rihanna ("Only Girl"). Maynard was brought to label attention when American singer/songwriter Ne-Yo watched a cover version of his track "Beautiful Monster" - who contacted the musician soon afterwards.

In November 2011, Maynard received a nomination for MTV's Brand New for 2012 award, competing alongside Delilah, Michael Kiwanuka, Lana Del Rey and Lianne La Havas. It was announced on January 31, 2012 that Maynard had been crowned winner of the award, having received approximately 48% of the public vote. February 2012 saw the reveal that Maynard had been signed to label EMI subsidiary, Parlophone in late 2011 and that work would begin in the coming months on his debut studio album, Contrast. Maynard released the music video for his debut single "Can't Say No" on March 1, 2012, which by April 2012 had already surpassed three million views. The single was met with positive reviews, with Lewis Corner (of Digital Spy) describing it as "playful, fun and immediately leaves you wanting another go", whilst others compared Maynard to Canadian singer Justin Bieber; both vocally and career-wise. However Conor disputes this claim, saying "I'm not like Justin Bieber", but recognises that they both gained popularity from YouTube.

Justin Drew Bieber ( /ˈbiːbər/ BEE-bər, born March 1, 1994) is a Canadian Pop/R&B singer-songwriter, musician, and actor. Bieber was discovered in 2008 by Scooter Braun, who came across Bieber's videos on YouTube and later became his manager. Braun arranged for him to meet with Usher in Atlanta, Georgia, and Bieber was soon signed to Raymond Braun Media Group (RBMG), a joint venture between Braun and Usher, and then to a recording contract with Island Records offered by L.A. Reid. Bieber's debut single, "One Time", was released in 2009 and peaked in the top twenty in Canada and charted in the top thirty in several international markets. His debut album, the seven-track EP My World, followed in November 2009, and was soon certified platinum in the United States. He became the first artist to have seven songs from a debut album chart on the Billboard Hot 100.

Talib Kweli Greene (October 3, 1975), better known as Talib Kweli, is an American rapper. Kweli hails from Brooklyn, New York. His first name in Arabic means "student" or "seeker" (طالب); his middle name in Swahili means "true". Kweli first gained recognition through Black Star, a collaboration with fellow MC Mos Def.

Born in Brooklyn, New York, Kweli grew up in a highly educated household in Park Slope. His mother, Brenda Greene, is an English professor at Medgar Evers College of the City University of New York and his father an administrator at Adelphi University. His younger brother, Jamal Greene, is a professor of Constitutional Law at Columbia Law School, and former clerk to Justice John Paul Stevens on the Supreme Court. As a youth, he was drawn to Afrocentric rappers, such as De La Soul and other members of the Native Tongues Posse whom he had met in high school. Talib Kweli was a student at Cheshire Academy, a boarding school in Connecticut. He was also a student at Brooklyn Technical High School, before being academically dismissed. He later studied experimental theater at New York University.