March 10, 1839: Lin Tse-hsü, the governor of the Chinese province of Hu-Huang, proclaims that the opium trade will no longer be tolerated in Canton, and he begins arresting known opium dealers in the local schools and naval barracks. Those found guilty of purchasing, possessing or selling opium are sentenced to public execution by strangulation. "Let no one think," Lin proclaimed, "that this is only a temporary effort on behalf of the Emperor. We will persist until the job is finished."

March 11, 1966: Psychedelic guru Timothy Leary receives a 30-year prison sentence in Texas for trying to cross into Mexico with a small amount of marijuana.

March 8, 1973: The US Coast Guard conducts its first Coast Guard-controlled seizure when the USCGC Dauntless boards a 38-foot sports fisherman boat, the Big L, and arrests its master and crew with more than a ton of marijuana on board.

March 9, 1982: The largest US domestic cocaine seizure ever to date raises US awareness of the Medellin cartel. The seizure of 3,906 pounds of cocaine, valued at over $100 million wholesale, from a Miami International Airport hanger tells US law enforcement that Colombian traffickers must be working together because no single trafficker could be behind a shipment that large.

March 10, 1984: By tracking the illegal sale of massive amounts of ether to Colombia, the DEA and Colombian police discover Tranquilandia, a laboratory operation deep in the Colombian jungle. In the subsequent bust, law enforcement officials destroy 14 laboratory complexes, which contain 13.8 metric tons of cocaine, 7 airplanes, and 11,800 drums of chemicals, conservatively estimated at $1.2 billion. The bust confirms the consolidation of the Medellin cartel's manufacturing operation.

March 12, 1998: Canada legalizes hemp production and sets a limit of 0.3% THC content that may be present in the plants and requires that all seeds be certified for THC content.

March 12, 1998: The mayors of San Francisco, Oakland, Santa Cruz and West Hollywood write letters to President Clinton asking him to keep the cannabis buyers clubs open. They tell the president: "If the centers are shut down, many of these individuals will be compelled to search back alleys and street corners for their medicine," and ask him to "implement a moratorium on enforcement of federal drug laws that interfere with the daily operation of the dispensaries."

March 9, 2001: William J. Allegro, 32, of Bradley Beach, New Jersey is sentenced to 50 years in prison for growing marijuana in his home. "The court imposed this sentence because the court felt obligated to do so under the law," says Judge Paul F. Chaiet, a former prosecutor. "Mandatory sentencing provisions can create difficult results. In the court's view, this is one of those times where the ultimate results are difficult to accept."

March 10, 2004: In a Washington Post article, "Obesity Passing Smoking as Top Avoidable Cause of Death," Health and Human Services Secretary Tommy G. Thompson, when asked about unhealthy foods, says, "I don't want to start banning things... Prohibition has never worked." [NOTE: In 2000, only 0.7% of all deaths were due to illicit drug use while poor diet and physical inactivity was responsible for 16.6% of all deaths.]