Bolognaise Sauce is a meat based sauce that originated from the Bologne region of Italy. The sauce has a tomato base with minced meat and wine. Different other ingredients are added to the sauce as according to the recipe. In Italian cuisine, it is customarily used to dress "tagliatelle al ragù" and to prepare "lasagne alla bolognese" but rarely used with spaghetti. Spaghetti with the sauce bolognaise (or a sauce similar to the original based on minced meat and tomatoes) is however more popular in France where it is believed to have originated in the 1930s and then spread elsewhere. In Australia, UK and Belgium the Spaghetti Bolognaise is known as spaghet' bolo or spag' bolo and in the USA the sauce with tomato and minced beef is called bolognese though it may be very different from the original Italian sauce or the French spaghetti bolognaise.
