September 1967

Saturday 02:

The microstate Principality of Sealand unilaterally declares its independence.

Sunday 03:

Dagen H in Sweden: traffic changes from driving on the left to driving on the right

Monday 04:

Vietnam War: Operation Swift begins: U.S. Marines launch a search-and-destroy mission in Quang Nam and Quang Tin Provinces. The ensuingfour-day battle in Que Son Valley kills 114 Americans and 376 North Vietnamese.

Sunday 10:

The people of Gibraltar vote to remain a British dependency rather than becoming part of Spain.

Friday 15:

Former U.S. President Lyndon B. Johnson, responding to a sniper attack at the University of Texas, writes a letter to the United States Congress urging the enactment of gun control legislation.

Sunday 17:

Jim Morrison and The Doors defy CBS censors on The Ed Sullivan Show. Morrison sang the lyrics, "Girl, we couldn't get much higher" from the song, Light My Fire when asked not to.

Saturday 30:

BBC Radio 1 is launched; the BBC's other national radio stations also adopt numeric names. Tony Blackburn presents the first show.