On this date

In 1809,

just over three years after the famous Lewis and Clark expedition ended, Meriwether Lewis was found dead in a Tennessee inn, an apparent suicide. He was 35.

In 1910,

Theodore Roosevelt became the first former U.S. president to fly in an airplane during a visit to St. Louis.

In 1958,

the lunar probe Pioneer 1 was launched; it failed to go as far out as planned, fell back to Earth, and burned up in the atmosphere.

In 1962,

Pope John XXIII convened the first session of the Roman Catholic Church’s Second Vatican Council, also known as Vatican II.

In 1968,

Apollo 7, the first manned Apollo mission, was launched with astronauts Wally Schirra, Donn Fulton Eisele and R. Walter Cunningham aboard.

In 1983,

the last full-fledged handcranked telephone system in the United States went out of service as 440 telephone customers in Bryant Pond, Maine, were switched over to direct-dial service.

In 2001,

in his first prime-time news conference since taking office, President George W. Bush said “it may take a year or two” to track down Osama bin Laden and his network in Afghanistan but added: “We’ve got them on the run.”

Ten years ago:

Composer-arranger Neal Hefti, who wrote the themes for the movie “The Odd Couple” and the TV show “Batman,” died in Toluca Lake, Calif., at age 85.

Five years ago:

The Organization for the Prohibition of Chemical Weapons won the Nobel Peace Prize for its efforts to stop chemical warfare.

One year ago:

The Boy Scouts of America announced it would admit girls into the Cub Scouts starting in 2018 and establish a new program for older girls based on the Boy Scout curriculum, allowing them to aspire to the Eagle Scout rank.