Looking for climate effects in 100 years of data is plainly ridiculous...
Climate effects are much longer term...
Here is a start with 2000 years...
This new analysis shows that the warming we have seen in the late-20th century is not unprecedented, as can be seen in figure 5 (from the paper). Seen in the reconstruction is a well-defined peak of temperature between 950–1050 AD. They also find that the first millennium is warmer than the second.