Thirty years after first visiting Havana, an expert in US-Cuba relations reports on his latest visit.

Same-sex marriages and an apology from the state followed the homosexual law reform, but gaps remain for some people trying to have historic convictions expunged.

Rather than simply recounting history, each new version reworks a shared cultural template for contemporary audiences.

Finding a reason to learn that comes from within ourselves – intrinsic motivation – is key.