###First instinct: hierarchical date URLs###
/people/:id - show person as-of latest
/people/:year/:id - show person as-of Y
/people/:year/:month/:id - show person as-of Y/M
/people/:year/:month/:day/:id - show person as-of Y/M/D
- Pro: well-known URL pattern, common in blogs
- Con: can't distinguish
/people/2004
(list people as-of 2004) From/people/2004
(show latest of person 2004) - Con:
/people/2004
really should be an list of months, not people