Agassi's autobiography, Open: An Autobiography, (written with assistance from J. R. Moehringer), was published in November 2009. In it, Agassi admitted that he used and tested positive for methamphetamine in 1997. In response to this revelation, Roger Federer declared himself shocked and disappointed, while Marat Safin argued that Agassi should return his prize money and be stripped of his titles. In an exclusive interview with CBS, Agassi justified himself and asked for understanding, saying that "It was a period in my life where I needed help." He also revealed that he had always hated tennis during his career because of the constant pressure it exerted on him. He also revealed he wore a hairpiece earlier in his career and thought Pete Sampras was "robotic". The book reached No. 1 on the New York Times Best Seller list and received favorable reviews. It won the Autobiography category of the 2010 British Sports Book Awards.
The origin of the word Andorra is unknown, although several hypotheses have been formulated. The oldest derivation of the word Andorra is from the Greek historian Polybius (The Histories III, 35, 1) who describes the Andosins, an Iberian Pre-Roman tribe, as historically located in the valleys of Andorra and facing the Carthaginian army in its passage through the Pyrenees during the Punic Wars. The word Andosini or Andosins () may derive from the Basque handia whose meaning is "big" or "giant". The Andorran toponymy shows evidence of Basque language in the area. Another theory suggests that the word Andorra may derive from the old word Anorra that contains the Basque word ur (water).
Another theory suggests that Andorra may derive from Arabic al-durra, meaning "The forest" (). When the Moors colonized the Iberian Peninsula, the valleys of the Pyrenees were covered by large tracts of forest, and other regions and towns, also administered by Muslims, received this designation.
Other theories suggest that the term derives from the Navarro-Aragonese andurrial, which means "land covered with bushes" or "scrubland".
The folk etymology holds that Charlemagne had named the region as a reference to the Biblical Canaanite valley of Endor or Andor (where the Midianites had been defeated), a name also bestowed by his heir and son Louis le Debonnaire after defeating the Moors in the "wild valleys of Hell".
Before 1095, Andorra did not have any type of military protection and the Bishop of Urgell, who knew that the Count of Urgell wanted to reclaim the Andorran valleys, asked the Lord of Caboet for help and protection. In 1095 the Lord of Caboet and the Bishop of Urgell signed under oath a declaration of their co-sovereignty over Andorra. Arnalda, daughter of Arnau of Caboet, married the Viscount of Castellb and both became Viscounts of Castellb and Cerdanya. Years later their daughter, Ermessenda, married Roger Bernat II, the French Count of Foix. They became Roger Bernat II and Ermessenda I, Counts of Foix, Viscounts of Castellb and Cerdanya, and co-sovereigns of Andorra (shared with the Bishop of Urgell).
In the 13th century, a military dispute arose between the Bishop of Urgell and the Count of Foix as aftermath of the Cathar Crusade. The conflict was resolved in 1278 with the mediation of the king of Aragon, Pere II between the Bishop and the Count, by the signing of the first parage which provided that Andorra's sovereignty be shared between the count of Foix (whose title would ultimately transfer to the French head of state) and the Bishop of Urgell, in Catalonia. This gave the principality its territory and political form.
A second parage was signed in 1288 after a dispute when the Count of Foix ordered the construction of a castle in Roc d'Enclar. The document was ratified by the noble notary Jaume Orig of Puigcerd and the construction of military structures in the country was prohibited.
In 1364 the political organization of the country named the figure of the syndic (now spokesman and president of the parliament) as representative of the Andorrans to their co-princes making possible the creation of local departments (comuns, quarts and venats). After being ratified by the Bishop Francesc Tovia and the Count Jean I, the Consell de la Terra or Consell General de les Valls (General Council of the Valleys) was founded in 1419, the second oldest parliament in Europe. The syndic Andreu d'Als and the General Council organized the creation of the Justice Courts (La Cort de Justicia) in 1433 with the Co-Princes and the collection of taxes like foc i lloc (literally fire and site, a national tax active since then).
Although we can find remains of ecclesiastical works dating before the 9th century (Sant Vicen d'Enclar or Esglsia de Santa Coloma), Andorra developed an exquisite Romanesque Art during the 9th and 14th centuries, as much in the construction of churches, bridges, religious murals and statues of the Virgin and Child (being the most important the Our Lady of Meritxell). Nowadays, the Romanesque buildings that form part of Andorra's cultural heritage stand out in a remarkable way, with an emphasis on Esglsia de Sant Esteve, Sant Joan de Caselles, Esglsia de Sant Miquel d'Engolasters, Sant Mart de la Cortinada and the medieval bridges of Margineda and Escalls among many others.
While the Catalan Pyrenees were embryonic of the Catalan language at the end of the 11th century Andorra was influenced by the appearance of that language where it was adopted by proximity and influence even decades before it was expanded by the rest of the Kingdom of Aragon.
The local population based its economy during the Middle Ages in the livestock and agriculture, as well as in furs and weavers. Later, at the end of the 11th century, the first foundries of iron began to appear in Northern Parishes like Ordino, much appreciated by the master artisans who developed the art of the forges, an important economic activity in the country from the 15th century.