Bahía Blanca is a city located in the south-west of the province of Buenos Aires, Argentina, by the Atlantic Ocean, and seat of government of Bahía Blanca Partido. It has a population of 301,572 inhabitants according to the 2010 census [INDEC]. It is the main city in the larger Greater Bahía Blanca urban agglomeration.

The city has an important sea port with a depth of 45 feet (15 mt), kept constant upstream almost all along the length of the bay, where the Naposta Stream drains.

Bahía Blanca means "White Bay". The name is due to the typical colour of the salt covering the soils surrounding the shores. The bay (which is actually an estuary) was seen by Ferdinand Magellan during the first circumnavigation around the world on the orders of Charles I of Spain, in 1520, looking for a canal connecting the Atlantic to the Pacific Ocean all along the coasts of South America.

The city was founded as a fortress on 11 April 1828 by Colonel Ramón Estomba under the orders of Brigadier-General and subsequent Governor of Buenos Aires, Juan Manuel de Rosas, being named Fortaleza Protectora Argentina (Argentine Protective Fortress), intended to protect dwellers and their cattle from native rustling, and also to protect the coast from the Brazilian navy, which had landed in the area the previous year. It was visited by Charles Darwin during his travels through South America in September 1833. The fortress was attacked by malones (incursions of nomadic aboriginals on horseback) several times, most notably in 1859 by 3,000 Calfucurá warriors. It became commercially important after the Buenos Aires Great Southern Railway linked the town to the city of Buenos Aires in 1885. As a result, the transport of grain from the Pampas was much facilitated.

Carlos Di Sarli (January 7, 1903 – January 12, 1960) was an Argentine tango musician, orchestra leader, composer and pianist.

Carlos di Sarli was born at 511 Buenos Aires street (now Yrigoyen) in the town of Bahía Blanca, located in Southern Argentina. He was the eighth child of the Italian immigrant Miguel Di Sarli, the owner of a gunsmith store, and Serafina Russomano, daughter of the tenor singer Tito Russomano. Baptized as Cayetano di Sarli in accordance with the solid Catholic tradition of his parents, he later changed his name to Carlos. Music played an important role in the family: Carlos' older brother Domingo was a teacher at the Williams music conservatory in Bahía Blanca, Nicolas, another older child, became a famous baritone, and Carlos' younger brother, Roque, turned into a pianist. Carlos received training in classical music in the conservatory where his brother was teaching.

In 1916, working in his father's store, he suffered an accident that cost him an eye and which forced him to wear glasses for the rest of his life. Once recovered from the accident, 13 year old Carlos joined a company of traveling musicians, touring various provinces and playing popular music including tangos. Then he moved to Santa Rosa in the La Pampa province where a friend of his father, another Italian immigrant by the name of Mario Manara, owned a cinema and a club. He played piano there for two years, accompanying silent movies and performing early tango songs at the club. In 1919, he returned to Bahía Blanca and set up his first orchestra, playing at the Cafe Express on the corner of Zelarrayan and Buenos Aires streets, and in Cafe Moka, on O'Higgins street. The orchestra also did tours in the provinces La Pampa, Córdoba, Mendoza, San Juan and Salta. In 1923, Carlos and his younger brother Roque moved to Buenos Aires.