Sassari in the context of "Porto Torres"

The 4th millennium BC spanned the years 4000 BC to 3001 BC. Some of the major changes in human culture during this time included the beginning of the Bronze Age and the invention of writing, which played a major role in starting recorded history.

The city states of Sumer and the (Predynastic) Kingdom of Egypt were established and grew to prominence. Agriculture spread widely across Eurasia.

Sardinia (/sɑːrˈdɪniə/ sar-DIN-ee-ə; Sardinian: Sardigna [saɾˈdiɲːa]; Italian: Sardegna [sarˈdeɲɲa] ), officially the Autonomous Region of Sardinia, is the second largest island in the Mediterranean Sea after Sicily, and one of the twenty regions of Italy. It is located 200 km west of the Italian Peninsula, 200 km north of Tunisia, and 16.45 km south of the French island of Corsica. Sardinia is one five Italian regions with statutory domestic autonomy. It is divided into six provinces and two metropolitan cities. Cagliari is the capital and largest city, followed by Sassari. It has over 1.5 million inhabitants as of 2025.

Sardinia's indigenous language and the Algherese dialect of Catalan are recognized by both regional and national law as two of Italy's twelve official linguistic minorities, albeit gravely endangered; regional law provides some degree of protection and recognition of the island's other minority languages: the Corsican-influenced Sassarese and Gallurese, and Tabarchino Ligurian.

Monte d'Accoddi is a Neolithic archaeological site in northern Sardinia, located in the territory of Sassari, Italy. The site consists of a massive raised stone platform thought to have been an altar. It was constructed by the Ozieri culture or earlier, with the oldest parts dated to around 4000–3650 BC.

Sassarese (natively sassaresu [sasːaˈrezu] or turritanu; Sardinian: tataresu [tataˈɾezu]) is an Italo-Dalmatian language spoken in coastal areas of northwestern Sardinia, Italy. Closely related to Gallurese and Corsican, it has its roots in medieval Tuscan because of Sassari's historic ties with Tuscany and geographical proximity to Corsica, despite the robust Sardinian influences (in terms of vocabulary and phonology, as well as syntax). Due to its origins, Sassarese has several similarities to the Italian language.

Sassarese is spoken by approximately 100,000 people, out of a total population of 175,000 in its area. Large Sassarese-speaking communities are present in Sassari, Stintino, Sorso, and Porto Torres. The Sassarese varieties transitioning to Gallurese, known as the Castellanesi dialects, can be heard in Castelsardo, Tergu, and Sedini.

The Metropolitan City of Sassari (Italian: Città metropolitana di Sassari; Sardinian: Tzitade metropolitana de Tàtari) is a metropolitan city in the autonomous island region of Sardinia in Italy. Its capital is Sassari, the second-largest city in Sardinia. The province was carved out from the former province of Sassari on April 16, 2021 and became functional on April 1, 2025. It has 312,555 inhabitants across its 66 municipalities.

The Fountain of the Rosello is a fountain in Sassari, Sardinia, Italy, considered the symbol of the city.It is located at the end of the Rosello valley next to the ancient district of the city.

The Gulf of Asinara is a sea sector included between the Asinara Island, Cape Falcone and the town of Castelsardo, in northern Sardinia, Italy. The communes facing its coast include also Stintino, Porto Torres, Sassari, Sorso, Valledoria and Badesi.

The littoral features several beaches, some kilometers long, such as La Pelosa, le Saline Ezzi Mannu and Fiume Santo, those near Porto Torres, Platamona, the beaches of Castelsardo, Valledoria, Badesi, Trinità d'Agultu, Vignola and Isola Rossa.