When Shakespeare began his work as a dramatist he could barely stop writing again.
Until the beginning of the 1600 he worked parallel with historical tragedies like comedies and also the more dramatic and graver tragedies, which he became more famous for. Shakespeare’s most knows history plays is for example: Richard III, Henry IV (part 1 and 2) and Henry V,Julius Caesar and Antoni and Cleopatra.
Among the comedies, he wrote until the beginning of 1600 was overall merry, light farces and romantic comedies. It was for instance: The Comedy of Errors, The Taming of the Shrew, The Merry Wives of Windsor, A Midsummer Night's Dream, As You Like It and particularlyTwelfth Night.
Somehow after he wrote “Twelfth night” it was like he suddenly changed his mood marked. His writing style changed the character. His comedies became gloomier and more gravely than the other comedies he wrote before. And because of this shift in temper and writing style, he wrote some of his greatest tragedies, for example: Hamlet, King Lear and Macbeth. Before this period he wrote Romeo and Julie and of cause this is also a tragedy witch contain unrequited love, but the tragedy also contain cheerful movements and a light tone than his later great works he wrote. Although Shakespeare is regarded in the world history as one of the biggest writers, is it commonly known that none of his dramatic plots were original. Contrary he heart or read the histories from elsewhere or even saw them preformed on other scenes. He took the histories and made it his own.
Few of Shakespeare's plays and dramatic characters are entirely his own - the story of Falstaff and The Merry Wives of Windsor is one of those.


So Shakespeare was glad to be inspired by others stories and plays. It could be from itshistory, fairy tales, legends and myths.
Nevertheless, he managed to do all these "borrowed storiesto his own immortal and universal human stories by adding them his own peculiar style, by giving them a twist or two and also by adding new persons to personal galleries:
The tragedy of the Danish Prince Hamlet is for example based on a little-known narrative from Saxo Grammaticus on Amled, a Danish prince from the saga of the time.
Shakespeare also got inspiration from old English legends and historical narrative of the kingdom kings and their deeds. Here comes for example the works of King Lear and Macbeth.
Some of the most peculiar of Shakespeare's plays are that he didn’t respect any of the roles, norms and he totally ignores the perfect solution or how you normally write at that time.
For example he always had more than one story running in the plays
: So you have a ‘main story’ and also one or more ‘bilateral’ or side stories, which take place in parallel with the main narrative.

These 'side stories' has either the purpose of illustrating the play's main theme from a sort of slightly different angle/side, or maybe just to give the audience something else to look at:
In tragedies for example Hamlet and Macbeth, we have moments called 'comic relief', which purpose it is to lighten the mood a little from the deep and tragic happenings that also takes place in the play.
This mixture of main and side stories can
really make Shakespeare more confusing to gain an overview and impossible to retell at short time.Nevertheless, it is also this specificity that makes his stories so filled of life and irresistible for the audience.

Shakespeare's writing affects all kind of human themes and destinies in a way that makes them relevant and interesting to an audience, even 400 years after they first appeared on the scene!