1.Ancient China made unique contributions to many areas of science including astronomy, calendric system, geography, mathematics, agriculture, medicine and the humanities.

古代中国在天文历法、地学、数学、农学、医学和人文科学的许多领域，都作出过独特的贡献。

2.Dr. Meller and his colleagues think the disk fulfilled sophisticated religious and calendric purposes for the people who made it.

3.But despite the certain kind of logic in this move, January 1 calendric supremacy was far from assured.

4.Some calendric experts say the event many are calling Thanksgivukkah happens once a century; others say it won’t happen for thousands more years.

5.Those who have persistently appealed to these Maya-Aztec calendric systems as convincing proofs of Asiatic influences in the evolution of American cultures will now have to show where these influences come in.

6.Deities, credited and 97 discredited, have often a connexion with the calendar, and we may have here some calendric reference, or again the chant may be merely a nonsense rhyme.

7.It was braided according to a calendric system: the more important the day the more numerous the strands in the braid.

8.Fast forward to the 1930s, when the Maine Farmers’ Almanac listed a complex calendrical meaning for the term, according to Sky & Telescope magazine.

9.Conveniently, there are still plenty of folks more than happy to gather in a park and rock out like Y2K is just around the calendrical corner.

10.However, not all archaeologists are convinced of the ancient monument’s calendrical accuracy.

11.But despite the calendrical bad omen, this will be a lucky day: Apophis will not strike our planet—this time, anyway (its orbit ensures Apophis will visit us again in 2036, 2051, 2066 and so on).

12.The ritual observation of the passage of FDR’s calendrical contrivance promises to be even more turgid than usual this year.

13.And to account for calendrical drift, when the length of the year doesn't line up with the astronomical calendar (365.24 days, just about), its creators have added an extra week at the end of December every five or six years.

14.How’s this for a calendrical trifecta: Sunday is Super Bowl Sunday.

15.Tracing someone’s intellectual interests across a lifetime can be more meaningful than dragging the subject and the reader ever onward through calendrical time.