This annual report carries the story of CIMMYT through 1971. Previous reports ended in midyear. Therefore, it has been necessary to report some activities over an 18-month period. The years 1970 and 1971 were extraordinary years for the Center and its collaborators. CIMMYT's new headquaters, laboratories and dormitory facilities at EI Batan, 45 kilometers from Mexico City, were inaugurated on September 21, 1971. Several new research stations were added to CIMMYT facilities, with financing by the Rockefeller Foundation. Norman Borlaug was awarded the Nobel Peace Prize and CIMMYT shared with IRRI the UNESCO Science Prize. Both the maize and wheat program reported solid steps forward in their research in Mexico and in their outreach programs outside Mexico. CIMMYT financing reached a total of US$6.6 "million for 1971, with several new donors.