Suppose the Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, built along an east-to-west line across the historical northern borders of China to protect the Chinese states and empires against the invasions and raids of nomadic groups. Construction of the wall began as early as the 7th century BC, with later sections added during the Ming Dynasty (1368–1644).
Can we infer that "The Great Wall of China was built in a single year."? Yes, no, or maybe?