Edo-style sushi was born from the plentiful supply of Matazaemon's vinegar and success of Yohei's nigiri-sushi. Not only Yohei's business, but many other sushi stands also enjoyed vigorous success, until a historical event ironically "curbed the appetite" for sushi.
Around 1833, a great famine swept Edo, and with the reformation of the Tempo Shogunate (a military government), luxuries were banned, resulting in attacks on sushi shops. Since popular businesses were aimed at, the phrase "It's good if they've been caught" became a way to evaluate the quality of sushi.
At any rate, the winds of change blew once again, nigiri-sushi became even more popular, and its reputation spread from Edo to the countryside. By the beginning of the Meiji Period (1868), after he had been in business for 40 years, Yohei's nigiri-sushi had "arrived" on a national scale.

Nigiri Sushi Picture around 1875.