Editing Schengen Information System (section)

== History ==
On 25 March 1957, the [[Treaty of Rome]] was completed. On 3 February 1958, the economic union of the [[Benelux]] countries was formed. Both agreements aimed to enable the free movement of people and goods across national borders. The Benelux countries, as a smaller group, were able to quickly implement the agreement. The [[European Communities]]' focus was on economic integration. It was not until the agreement of [[Saarbrücken]] was completed on 13 July 1984, that border controls between [[France]] and [[Germany]] were eased.

On 14 June 1985, France, Germany and three of the Benelux nations completed the [[Schengen Agreement]]. Border controls on people and goods between these nations were gradually relaxed. On 19 June 1990, the initial five nations were joined by Spain, Portugal, Italy, Greece, Austria and five [[Nordic Passport Union]] countries: Denmark, Finland, Iceland, Norway and Sweden.

On 21 December 2007, the Schengen border-free zone was enlarged to include Estonia, the Czech Republic, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia and Slovenia.

On 1 January 2023, the Schengen border-free zone was enlarged to include Croatia.