Dec. 27, 1945: Effectuation of the Articles of Agreement for the Bank. 
 
June 9, 1960 - Membership signing of Pakistan with IDA. 
 
July 11, 1960 - Membership signing of Australia with IDA. 
 
August 1, 1960 - Membership signing of China with IDA. 
 
September 16, 1963 - Membership signing of Trnidad and Tobago with IBRD. 
 
September 27, 1963 - Membership signing of Mali 
 
October 26, 1960 - Membership signing of United Arab Republic with IDA. 
 
November 8, 1963 - Membership signing of the Republic of Congo (Brazzaville) with IDA. 
 
November 14, 1961 - Membership signing of Nigeria with IDA. 
 
December 27, 1960 - Membership signing of Japan with IDA.