1612: The Okamoto Daihachi Affair and the Christian Prohibition Edict
A bribery and forgery scandal involving Okamoto Daihachi, a retainer of Honda Masazumi, came to light, and because those implicated included Christians, the shogunate issued an edict ordering the destruction of churches and the prohibition of missionary activity in its directly controlled territories of Edo, Kyoto, and Sunpu. The ban would soon extend to daimyo domains throughout the country, marking the beginning of the shogunate's systematic suppression of Christianity.
Events this year
9/1
The shogunate banned Christianity in territories under its direct control, advancing a religious policy that led to nationwide prohibition.
The main and smaller keeps of Nagoya Castle were completed through public construction, and golden shachi were placed atop the main keep as symbols of the Owari Tokugawa house.