Do you frequently stop reading articles two sentences in? It's amazing how much knowledge and intelligence you must be missing.

Please do keep reading past. The next sentence (literally sentence #3) gives you: Nonetheless, there are core elements which are generally agreed upon as forming the cultural foundation of modern Europe. One list of these elements given by K. Bochmann includes:

And then a detailed list of shared-culture-related items.

- A common cultural and spiritual heritage derived from Greco-Roman antiquity, Christianity, Judaism, the Renaissance, its Humanism, the political thinking of the Enlightenment, the French Revolution, and the developments of Modernity, including all types of socialism;[5][4]

- A rich and dynamic material culture, parts of which have been extended to the other continents as the result of industrialization and colonialism during the "Great Divergence";[5]

- A specific conception of the individual expressed by the existence of, and respect for, a legality that guarantees human rights and the liberty of the individual;[5]

- A plurality of states with different political orders, which share new ideas with one another.[5]

- Respect for peoples, states, and nations outside Europe.

And then there are 15 categories from Music to Science to History, listing cultural similitudes or shared values.