The Boericke and Tafel company is one of the oldest and most respected Homeopathic companies in the world. Invited by Dr. Hering to manufacture Homeopathic remedies, in 1853 Francis E. Boericke and Adolph J. Tafel founded the Boericke and Tafel company in the United States. Within 10 years or so, they had opened pharmacies in Pennsylvania, New York, New Orleans, San Francisco, Pittsburgh, Washington D.C., Minneapolis, Chicago and Cincinnati. They served some of the most famous physicians of their era, including Christopher Hering and James Kent. Boericke and Tafel were also publishers, responsible for publishing over 85% of all homeopathic books in the US, including the Boericke Materia Medica, which is still the standard Materia Medica in the United States.