The Tudors is a historical fiction television series set primarily in sixteenth-century England, it is based specifically upon the reign of King Henry VIII of England.
Rome is a British-American-Italian historical drama The series features a sprawling cast of characters, many of whom are based on real figures from historical records, but the lead protagonists are ultimately two soldiers named Lucius Vorenus and Titus Pullo, who find their lives intertwined with key historical events.
Spartacus is an American television series. The series was inspired by the historical figure of Spartacus, a Thracian gladiator who from 73 to 71 BCE led a major slave uprising against the Roman Republic departing from Capua.
Set on the fictional continents of Westeros and Essos, Game of Thrones has several plot lines and a large ensemble cast. The first story arc follows a dynastic conflict among competing claimants for succession to the Iron Throne of the Seven Kingdoms, with other noble families fighting for independence from the throne. The second covers attempts to reclaim the throne by the exiled last scion of the realm’s deposed ruling dynasty; the third chronicles the threat of the impending winter and the legendary creatures and fierce peoples of the North.
Orange is the new Black is based on Piper Kerman’s memoir, Orange Is the New Black: My Year in a Women’s Prison (2010), about her experiences at FCI Danbury, a minimum-security federal prison.
Girls is a comedy-drama following the lives of four young women living in New York City. The show’s premise and major aspects of the main character were drawn from Dunham’s own life.
House of Lies is based on the book House of Lies: How Management Consultants Steal Your Watch and Then Tell You the Time
The Girl’s Guide to Depravity is a comedy/drama series based on Heather Rutman’s popular blog of the same name
Masters of Sex. Set in the 1950s through the early 1970s, the series tells the story of Masters and Johnson (Dr. William Masters and Virginia Johnson) who are portrayed by Michael Sheen and Lizzy Caplan.
Just watch the show to know why it is on number one.