This piece is from of Nabucco, an opera in four acts by Italian composer Giuseppe Verdi (1818-1901) to an Italian libretto by Temistocle Solera. It is also known by its Italian title Va, Pensiro, (Fly, My Thoughts).Nabucco was based on the Biblical story of the plight of the Jews as they are exiled from their homeland by the Babylonian King Nebuchadnezzar. The historical events are used as background for a romantic and political plot.he popular song  Rivers of Babylon  uses some of the words from the same Psalm. Verdi's first opera, Oberto, which was produced by Milan's La Scala in November 1839 achieved a degree of success, after which Bartolomeo Merelli, La Scala's impresario, offered the young composer a contract for two more works.
Veins can be classified as pulmonary veins and systemic veins. The pulmonary veins are a set of veins that deliver oxygenated blood from the lungs to the heart and the Systemic veins drain the tissues of the body and deliver deoxygenated blood to the heart.
The pulmonary vein is the vessel transporting oxygen-rich blood from the lungs to the left atrium. A common misconception is that all veins carry de-oxygenated blood. It is more appropriate to classify veins as vessels carrying blood to the heart.