| • Science | • People | • Locations | • Timeline |
Born in Echigo, Toshiaki came to Edo to study astronomy, mathematics and Kendo. At the age of 24, he opened his own school.
He wrote Keisei Hisaku , in which he proposed lifting a ban of a foreign trade and colonization of Ezo.
He died in 1820.
Toshiaki, Honda Toshiaki, Honda