Conservatives love to tout Abraham Lincoln as one of history's most celebrated Republicans -- especially on Feb. 12, his birthday. But the modern GOP has nothing to do with the party of Lincoln, and the 16th president would probably be horrified by the likes of Sen. Ted Cruz (R-Texas) and Donald Trump.

Happy birthday to President Lincoln, who was born #OnThisDay in 1809. pic.twitter.com/vGGMwJ4aks — GOP (@GOP) February 12, 2016

Here's a little history lesson: when the Republican Party first emerged in the 1850s, its policies were more akin to the modern Democratic Party, including our country's very first income tax.

But in the early 20th century things began to change. The Republican Party became increasingly divided, particularly over the issue of tariffs. Then the Great Depression happened and Republican President Hebert Hoover refused to provide government aid to struggling people. His successor, Democrat Franklin Delano Roosevelt, on the other hand, provided relief to the poor and put more regulations on the economy through the New Deal. The Democratic Party shifted left. The Republicans inched further right toward opposition to civil rights, anticommunist fear-mongering and -- as National Review founder William F. Buckley Jr. put it -- "stand[ing] athwart history, yelling Stop." Once the GOP of the 1960s began to actively fight racial equality, many of the remaining progressives left the party.

So when the GOP says things like "Happy birthday to a great Republican," it's worth noting a few Lincoln-era Republican policies that today's GOP would have railed against:

Federal Income Tax

In 1861, Lincoln OK'd the nation's first federal income tax. Meanwhile, today's Republicans push for lower and fewer taxes.

Railroad Expansion

In 1862, Lincoln signed into law the Pacific Railroad Acts, which provided federal funding for the western expansion of the railroad. Modern Republicans, on the other hand, fought to a privatize a planned high-speed Amtrak line and last year stalled congressional efforts to fund our nation's highways.

Funding For Public Education

In 1862, Lincoln signed a law giving states land grants which they could sell and use the money to fund old colleges or build new ones. Meanwhile, today's Republicans have voted to cut crucial funding for higher education and blocked efforts to make college more affordable -- such as President Barack Obama's plan to make community colleges free.

Expansion Of Presidential Powers

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