Conversation so far:
Is Seth Rogen married?
Seth Rogen is married to writer/actress Lauren Miller.
Who did Seth Rogen marry?
Seth Rogen is married to writer/actress Lauren Miller.
How did Seth Rogen and Lauren Miller meet?
Seth Rogen and Lauren Miller met while Rogen was working on Da Ali G Show.
What was the Da Ali G Show?
Da Ali G Show is a British satirical television series created by and starring English comedian Sacha Baron Cohen.
Does Seth Rogen have children?
Seth Rogen says he and wife Lauren are 'open' to having kids.
Are there any other interesting aspects about the Seth Rogen article?
Seth Rogen has been outspoken about awareness of Alzheimer's disease.
How does Seth Rogen support awareness of Alzheimer's disease?
Seth Rogen testified about the disease and his charity before the United States Senate Appropriations Subcommittee on Labor, Health and Human Services on February 26, 2014.
What is Seth Rogen's charity?
Seth Rogen started the Hilarity for Charity movement, to inspire change and raise awareness of Alzheimer's disease among the Millennial Generation.

Question: When did he start the charity?
Self-contained rewrite: When did Seth Rogen start Hilarity for Charity?