We came out of a little ice age at around 1870. The causes are complex but include a huge amount of volcanic activity over 50 years potentially lower solar output during that time known as the Maunder Minimum. The effects of both on climate hung around but were effectively over by 1950 and we wouldn't expect any further warming since then.
You'll notice that I didn't we came out of it in a single year. I was saying that the factors that contributed to the Little Ice Age would have stopped having an influence by 1950.
