Classes are listed in the left hand vertical column and calendar years are listed in the horizontal line across the top of the chart. Each class will find its numerals listed under the years in which it will hold reunions. An arrow pointing to the right indicates that the class reunion which would have been held under the former five-year plan has been delayed one year. An arrow pointing to the left indicates that the reunion has been advanced one year.
The plan was devised by Prof. Robin Robinson '24 of the Mathematics Department. Its adoption was voted by the class officers and by the Alumni Council.