The global economy depends on shipping containers.
AP Photo/Seth Wenig
Before the container was standardized, loading and unloading goods was very labor-intensive, inefficient and costly.
Beachgoers near Cairo watch a massive container ship sail to the Red Sea.
AP Photo/Amr Nabil
Before the container was standardized, loading and unloading goods was very labor-intensive, inefficient and costly.
Cremation on the banks of the Ganges river, India.
Keystone-France via Getty Images
When the 1918 influenza pandemic struck India, the death toll was highest among the poor.