там какая-то история была с одним из автором
Вот такую теорию нашел:
I think they chose this date because each major timestamp component has a different ordinal value:
Month = Jan (1, also selecting for short-name vs. long-name vs. numeric month representation)
Day = 2
Hour = 15 (3, also selecting for 24-hr vs. 12-hr am/pm representation)
Minute = 4
Second = 5
Year = 6 (also selecting for presence of century qualifier)
Timezone offset = 7 (also selecting for position for offset sign and possible use of timezone names)