Explore each form from the oldest known stage to today.
The character 計 (计) is a compound ideograph (会意字) composed of 言 (speech/language) and 十 (ten). Its original meaning was 'to calculate' or 'to count,' combining the idea of using words (言) to enumerate or tally numbers (十, representing a complete set or counting). Over time, its meaning expanded to include 'to plan,' 'scheme,' and 'measure,' reflecting the use of calculation in strategy and assessment. In ancient Chinese scripts like bronze inscriptions, the structure was more pictorial, but it evolved into the standardized form seen in clerical script (隸書) and later in modern kanji. Arrived in Japan: The character 計 likely arrived in Japan during the early waves of Chinese cultural importation, such as through the introduction of Confucian classics and Buddhist texts around the 5th to 6th centuries CE. It became part of the Japanese writing system with the adoption of Chinese characters (kanji) and appears in early Japanese texts like the Kojiki (712 CE) and Nihon Shoki (720 CE).