This article proposes that the oracle bone and bronze script character □ be interpreted as 弘, and that □, □, and □ all be interpreted as 強. In the Western Zhou Dynasty, 強 was written as □ and 弘 as □. As it developed in the Eastern Zhou, the upward slanting element on the right of □ might have been separated off from the 弓 element; as a result, 弘 was written as □--a convention which was passed on to the Han Dynasty. On the other hand, since 強 was also written as □ in the Eastern Zhou, to make a distinction, in the writing systems of Jin and Chu dynasties an extra element was added to the original form to make the new character form □. In the Han dynasty, the 強 character was taken from the writing system of Qin. This led to the confusion between 弘 (written as □) of the Han and 強 (written as □) of the Western Zhou, as well as between 引 (written as □) of the Han and 弘 (written as □) of the Western Zhou. The confusion was due to the fact that different words might take the same character form. The character evolution can be seen clearly in the following table: