The given name Jc is a shortened form of the Spanish name Juan Carlos. Its origins can be traced back to the Hebrew name Yochanan, meaning "God is gracious." The name Juan Carlos gained prominence in Spain and other Spanish-speaking regions during the Middle Ages.

Juan Carlos was the name of several notable historical figures, including Juan Carlos I, the former King of Spain who reigned from 1975 to 2014. He played a crucial role in Spain's transition to democracy after the Franco regime. Another prominent bearer of this name was Juan Carlos Onetti, a renowned Uruguayan novelist and author, who lived from 1909 to 1994.

In the realm of religion, Juan Carlos was the name of several Catholic saints and clergymen. One notable example is St. Juan Carlos Romero Gómez, a Spanish priest and martyr who was executed during the Spanish Civil War in 1936. He was canonized by Pope John Paul II in 1999.

The shortened form Jc became more common in the 20th century, particularly in Spanish-speaking countries and communities. It was used as a nickname or an informal variation of the full name Juan Carlos. Notable individuals with the first name Jc include Jc Cuadra, a Nicaraguan poet and writer who lived from 1891 to 1976, and Jc Leyva, a Mexican professional wrestler and actor born in 1970.

Another historical figure with the name Jc was Jc Hallman, an American writer and academic who authored several books on literature and culture, including "The Crucible of Doubt" and "In Utopia." He was born in 1971 and is currently a professor at the University of Pittsburgh.

It is worth noting that while the name Jc has its roots in Spanish and Hebrew traditions, it has also been adopted and used in other cultures and languages, further diversifying its historical and cultural significance.