Google has marked the 200th anniversary of the birth of Danish philosopher, theologian, social critic and poet Søren Kierkegaard with a Doodle.
Søren Aabye Kierkegaard was born on May 5th 1813 and is considered one of the most significant and prolific writers of the Danish “golden age” of intellectual and artistic activity.
The broad range of his work encompasses, philosophy, psychology, literary criticism, fiction and theology.
He is considered by many to be the first existentialist philosopher and is known as the "father of existentialism".
He is also notable for his critiques of Hegel and of the German romantics as well as his analysis of devotional literature and fiction.
Events are being held across Denmark to celebrate the 200th anniversary, including a musical performance aimed at explaining the notoriously difficult philosopher to children.
Søren Kierkegaard was born to an well-off family in the Danish capital Copenhagen and he rarely strayed away from his home city, travelling abroad only five times - on four occasions to Berlin and once to Sweden.
Philosophically his work is considered the “bridge” that led from Hegel to Existentialism.
Among his more famous works are “Fear and Trembling” (which he published under the pseudonym Johannes de Silentio), "The Concept of Dread", "The Sickness unto Death" and "Either/Or".
In much of his theological work he focuses on religious ethics and the question of how to be a Christian in Christendom.
Kierkegaard once lamented the complexity of his own work noting: "People understand me so little that they do not even understand when I complain of being misunderstood."
Today's Doodle shows six differently dressed figures using large quill pens to spell out the word Google.
Kierkegaard died on November 11, 1855.