Seine-et-Oise

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Seine-et-Oise (French pronunciation: [sɛn‿e waz]) is a former department of France, which encompassed the western, northern and southern parts of the metropolitan area of Paris.^[1] Its prefecture was Versailles and its administrative number was 78. Seine-et-Oise was disbanded in 1968 as part of the reorganisation of the departments of the Paris metropolitan area. The newly-created Yvelines department inherited the 78 number.^[2]