Today is Thursday, August 20, the 232nd day of 2015. There are 133 days left in the year.

On this date:

In 1833, Benjamin Harrison, 23rd president of the United States, was born in North Bend, Ohio.

In 1866, President Andrew Johnson formally declared the Civil War over, months after fighting had stopped.

In 1882, Tchaikovsky’s “1812 Overture” had its premiere in Moscow.

In 1910, a series of forest fires swept through parts of Idaho, Montana and Washington, killing at least 85 people and burning some 3 million acres.

In 1953, the Soviet Union publicly acknowledged it had tested a hydrogen bomb.

In 1964, President Lyndon B. Johnson signed the Economic Opportunity Act, a nearly $1 billion anti-poverty measure.