December is here, and it’s time for a look back at some of the most memorable events and images of 2013. Among the events covered in this essay (the first of a three-part photo summary of the year), Americans inaugurated President Barack Obama for a second term, a 13,000 ton meteor burned up in the sky over Russia, two young men detonated bombs at the Boston Marathon, and Dennis Rodman and North Korean leader Kim Jong Un enjoyed a basketball game together in Pyongyang. Please come back tomorrow and Wednesday for parts 2 and 3. The series will comprise 120 images in all. Warning, some of the photos may contain graphic or objectionable content.