What have Conservatives brought to America so far?

I was trying to figure out what the Conservatives have contributed to America and other than Slavery, Prohibition, Great Depression, McCarthyism,Trickle Down Economics (also knows as "Voodoo Economics") and Torture of prisoners, I could not think of anything. Could you name some. Please no naming Lincoln while he was a Republican, he was a Liberal, back then the party had different values. Also no naming the Constitution or Declaration of Independence as Thomas Jefferson was a staunch Liberal. Also if naming some fiscal policy please provide a source as currently there is no evidence I could find that Conservative fiscal policy ever worked in America or anywhere else. I know this is not easy but give it a try!