John Peter Zenger was a German-American printer

Printer (publisher)

In publishing, printers are both companies providing printing services and individuals who directly operate printing presses. With the invention of the moveable type printing press by Johannes Gutenberg around 1450, printing—and printers—proliferated throughout Europe.Today, printers are found...

, publisher, editor

Editing

Editing is the process of selecting and preparing written, visual, audible, and film media used to convey information through the processes of correction, condensation, organization, and other modifications performed with an intention of producing a correct, consistent, accurate, and complete...

, and journalist

Journalist

A journalist collects and distributes news and other information. A journalist's work is referred to as journalism.A reporter is a type of journalist who researchs, writes, and reports on information to be presented in mass media, including print media , electronic media , and digital media A...

 in New York City

New York City

New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

. He was a defendant

Defendant

A defendant or defender is any party who is required to answer the complaint of a plaintiff or pursuer in a civil lawsuit before a court, or any party who has been formally charged or accused of violating a criminal statute...

 in a landmark legal case in American jurisprudence

Jurisprudence

Jurisprudence is the theory and philosophy of law. Scholars of jurisprudence, or legal theorists , hope to obtain a deeper understanding of the nature of law, of legal reasoning, legal systems and of legal institutions...

 that determined that truth was a defense against charges of libel and "laid the foundation for American press freedom

Freedom of the press in the United States

Freedom of the press in the United States is protected by the First Amendment to the United States Constitution. This clause is generally understood as prohibiting the government from interfering with the printing and distribution of information or opinions, although freedom of the press, like...

."
The "Penman of the Constitution", Gouverneur Morris

Gouverneur Morris

Gouverneur Morris , was an American statesman, a Founding Father of the United States, and a native of New York City who represented Pennsylvania in the Constitutional Convention of 1787. He was a signatory to the Articles of Confederation. Morris was also an author of large sections of the...

, wrote this of the Zenger case: "The trial of Zenger in 1735 was the germ of American freedom, the morning star of that liberty which subsequently revolutionized America."
In the latter part of 1733 John Peter Zenger began publishing a newspaper in New York to voice opposition to the onerous policies of newly appointed colonial governor William Cosby.