Which president signed a joint resolution of congress to change the date that day would be celebrated

Franklin D. Roosevelt

Explanation:

When Franklin D. Roosevelt entered the White House, Thanksgiving was regularly celebrated each year on the last Thursday of November, but in 1939  the last Thursday in November fell on the last day of the month so, the President decided to move the holiday to the second to last Thursday of November to help the Christmas shopping season during the Great Depression. However, half of the states refused to accept the Presidential Proclamation and continued to celebrate it the last Thursday.

To set a fixed-date for the holiday, Congress passed a joint resolution in 1941 declaring the fourth Thursday in November to be the Federal Thanksgiving Day holiday and Roosevelt signed the resolution.

explanation: we can only guess at how our actions may be perceived in the future. doing something really big like killing lots of people, saving lots of people, affecting the lives of lots of people is a sure fire way of being remembered in historical records. we can also make a difference in the history records by being a small influence on something bigger, whether that is as a civil servant, scientist or artist.

of course you could argue that we all affect history just as tiny cogs in a   bigger machine.

if you mean how do people influence our opinions of things which have already happened, then simply by writing a book which looks at things form a different perspective and trying to convince people that this perspective is more accurate or truthful. people do it all the time i.e. richard the third was a terrible or was he? plenty would disagree, it's just that their views aren't the most widely known.n:

he armenian genocide, also known as the armenian holocaust, was the ottoman government's systematic extermination of 1.5 million armenians, mostly citizens within the ottoman empire.

explanation: