Don McCullin, The Beatles, 1968. Courtesy and © Don McCullin/Contact Press Images

On the 40th anniversary of one of the most politically tumultuous years in history, Aperture magazine is pleased to present an online version of an article that first appeared in issue 171. With some of the most iconic images from that era and an essay by Fred Ritchin, the question remains: To what extent is photography still relevant today?

Click here for the web-exclusive feature.