Yom Kippur War 10/6/1973

 From Saturday, October 6, 1973

Added 600 months, 6 weeks, 6 days = 666 

Normalized to 50 years, 48 days

10*6+19*73+11*23+20*23= 2160

11*23+20*23 = 713

10*6+19*73 = 1147