Complex sentence: The picture was taken by renown photographer Alfred Eisenstaedt and is acclaimed as the most recognizable photo of the 20th century and has come to symbolize the end of WWII and the begininning of the Baby Boomer generation.
Split into simpler sentences: The picture was taken by renowned photographer Alfred Eisenstaedt, and is acclaimed as one of the most recognizable photos of the 20th century. It has come to symbolize the end of WWII and the beginning of the Baby Boomer generation.