Put the tomatoes in a large bowl and mash into a coarse puree. Add garlic, salt, vinegar and olive oil and mix well. Taste and correct seasonings. Tear the bread into irregular chunks about 4 centimeter / 1 1/2 inches. Add the bread to the tomato mixture and mix until the bread has absorbed lots of the mixture. Tear parsley into sprigs.
Serve each portion of salad with a handful of the parsley.