Stop it with your BS.
Originally, the party was called the "Democratic-Republican" party. Eventually, they dropped the second half of the name.
Democrats in 1860 were conservative. Republicans in 1860 were liberal (i.e., "Radical Republicans").
Over time, the identification of Democrats and Republicans as conservatives or liberals began to flip, due to events such as Teddy Roosevelt splitting from the Republicans and the northern Democrats beginning to pursue social justice issues, such as a 40 hour work week, no child labor, and workplace safety. The party switch gained a ton of momentum with Strom Thurmond's Dixiecrat revolution in 1948 (where he single-handedly revived the use of the Confederate battle flag) and ended in 1968 with Nixon's "southern strategy".
It took 100 years, but by 1968, there had been a complete flip of "conservatives" from the Democrat party of 1860 to the Republican party of 1968, and a complete flip of radicals/liberals from the Republican party of 1860 to the Democrat party of 1968.
Just look at a time-lapse of how the southern states have voted for President over time. In 1944, Roosevelt carried the south. Starting in 1948, Democrats lost more and more southern states every 4 years until Nixon won them all in 1968. Since 1968, no Democrat running for President has carried the south unless he was a southerner (Jimmy Carter, Bill Clinton).
Facts.
Electoral maps reveal a lot about political change in the U.S.
time.com