Complex sentence: At the time of Toyotomi Hideyoshi (16th century), the "ken" was about 197 cm, but around 1650 the Tokugawa shogunate reduced it to 181.8 cm specifically to increase taxes.
Split into simpler sentences: At the time of Toyotomi Hideyoshi (16th century), the "ken" was about 197 cm. Around 1650 the Tokugawa shogunate reduced it to 181.8 cm specifically to increase taxes.