Hoping to keep the New England colonies dependent on the British, King George III formally endorses the New England Restraining Act on March 30, 1775. The New England Restraining Act required New England colonies to trade exclusively with Great Britain as of July 1. An additional rule would come into effect on July 20, banning colonists from fishing in the North Atlantic.

In territorial Kansas’ first election, some 5,000 so-called “Border Ruffians” invade the territory from western Missouri and force the election of a pro-slavery legislature. Although the number of votes cast exceeded the number of eligible voters in the territory, Kansas Governor Andrew Reeder reluctantly approved the election to prevent further bloodshed.

Following its ratification by the requisite three-fourths of the states, the 15th Amendment, granting African American men the right to vote, is formally adopted into the U.S. Constitution.

On March 30, 1939, Detective Comics No. 27 appears on the nation’s newsstands, introducing the world to a new superhero, the Batman. Dated May 1939, the comic book featured the caped crusader on its cover, swooping through the air on a rope, while holding a bad guy in a headlock. “Starting this issue,” the cover announced, “the amazing and unique adventures of the Batman!”

Actor Robert Mitchum is released from a Los Angeles County prison farm after spending the final week of his two-month sentence for marijuana possession there.

On March 30, 1971, Starbucks opens its first store in Seattle's iconic Pike Place market with a single employee. The store sells high-quality roasted coffee beans, freshly brewed hot coffee and not much else.

On March 30, 1974, the Ramones play their first New York City gig, launching a punk-rock revolution.

On March 30, 2009, President Barack Obama issues an ultimatum to struggling American automakers General Motors (GM) and Chrysler: In order to receive additional bailout loans from the government, he says, the companies need to make dramatic changes in the way they run their businesses. The president also announced a set of initiatives intended to assist the struggling U.S. auto industry and boost consumer confidence, including government backing of GM and Chrysler warranties, even if both automakers went out of business.