Is the degree of polarization between Democrats and Republicans unusually high from an historical perspective?

I am a lifelong Democrat, but I find it upsetting that a lot of recent legislation is being passed with no Republican support. Having one Republican senator to support a bill is being touted as bipartisan. Has this happened before in American history? Was this the case, for example, under Roosevelt? Does the Congressional divide reflect a divide among the population? Is there no spirit of compromise?