After years of bilateral and multilateral meetings, the Conference of European Regional Legislative Assemblies (CALRE) was founded by an act signed on October 7, 1997 in Oviedo, Spain, as a result of three precedents in the effort to grant a place and European role to regional parliaments.
Since then, the day of October 7 has been used to celebrate the CALRE.
The year 2022 will mark the 25th anniversary of the Declaration of Oviedo.