ALBAWABA - Ancient wooden artifacts that may be linked to an astronomical calendar have been unearthed by archaeologists in China. The discovery was made inside a remarkably well-preserved tomb believed to be approximately 2000 years old. The collection consists of 23 rectangular wooden objects, measuring about 2.5 cm wide and 10 cm long, each displaying a Chinese character associated with the Tiangan Dizhi, a traditional astrological calendar used during the ...