Arrange the following European Integration events in chronological order-

(A) The Treaty of Paris was signed.
(B) European Economic Community was established.
(C) Spain and Portugal joined the European Community.
(D) Euro was introduced in 12 EU countries.

Choose the correct answer from the options given below:

(A), (B), (C), (D)

The correct answer is Option (1) → (A), (B), (C), (D)

(A) The Treaty of Paris was signed. 1951 April: Six west European countries, France, West Germany, Italy, Belgium, the Netherlands and Luxembourg sign the Treaty of Paris establishing the European Coal and Steel Community (ECSC).
(B) European Economic Community was established.  1957 March 25: These six countries sign the Treaties of Rome establishing the European Economic Community (EEC) and the European Atomic Energy Community (Euratom). 
(C) Spain and Portugal joined the European Community. 1986
(D) Euro was introduced in 12 EU countries.  2002 January