X days from Aug 18 - Calculate days

7 + August 25, 1960

10 + August 28, 1960

14 + September 01, 1960

21 + September 08, 1960

28 + September 15, 1960

30 + September 17, 1960

40 + September 27, 1960

45 + October 02, 1960

60 + October 17, 1960

90 + November 16, 1960

100 + November 26, 1960

120 + December 16, 1960

180 + February 14, 1961

200 + March 06, 1961

300 + June 14, 1961

7 - August 11, 1960

10 - August 08, 1960

14 - August 04, 1960

21 - July 28, 1960

28 - July 21, 1960

30 - July 19, 1960

40 - July 09, 1960

45 - July 04, 1960

60 - June 19, 1960

90 - May 20, 1960

100 - May 10, 1960

120 - April 20, 1960

180 - February 20, 1960

200 - January 31, 1960

300 - October 23, 1959