Linked from
The 28 pages that link to Maastricht Treaty, each with the reason it gives.
European UnionRelated: It transformed integration from an economic community into a broader union.
EuroRelated: It committed participating states to a path toward adopting the euro.
EurozoneRelated: It set convergence criteria and a timetable for introducing the euro.
Treaty of LisbonRelated: Lisbon later abolished the pillar structure created by Maastricht.
History of the European UnionRelated: It transformed the communities into a broader political union.
Poul SchlüterRelated: The treaty triggered a Danish political crisis during Schlüter’s premiership.