I just added that the winter solstice is usually on December 21 (sometimes 22) with Christmas 4 days later and New Year's 7 days later.
There are 4 lunar phases of roughly 7 (~7.4) days each - 4 weeks in a 'moonth'. The lunar year of 354 days + 7 day week + 4 days = solar year.
The ancients observed 7 moving objects in the heavens - the sacred 7 Luminaires - what we call the 7 Classical Planets or 7 Naked-Eye Planets: Moon, Mercury, Venus, Sun, Mars, Jupiter, and Saturn. Out of these, 4 can't easily be seen during the day (Venus can be)/4 don't cast shadows on Earth (Venus can).
Orion is 7 stars with 4 making up his shoulders and feet (+ Orion's Belt). The Big Dipper is 7 stars with 4 in its quadrilateral bowl as is the Little Dipper. The Pleiades/7 Sisters is the 4th most recognizable asterism. Mars returns to the same point in the sky in relation to Earth and the Sun every 47 years.
months=74=M13+O+N14+T20+H8+S19 objects=74=O15+B2+J10+E5+C3+T20+S19 heavens=74=H8+E5+A1+V22+E5+N14+S19 shadows=74=S19+H8+A1+D4+O+W23+S19 point=74=P16+O15+I9+N14+T20
These patterns of 7 & 4 are BIG examples of GOD=7_4 Theory; see http://GOD704.wikia.com .