Original question was this:
Were there any ancient cultures (say more than 500 years old) that were accepting of open or partially open homosexuality in either men or women? For the purposes of this question, I don't count pedophilia.
I see from the answers that pedophilia can't be completely separated from ancient concepts of sexuality. Sex with children was not considered a sexual orientation, it appears. A more relevant concept was the role that a person took in the relationship (or possibly sex act), with children or slaves of either gender considered the more passive role, or the younger man was more passive, or a freeman was the more active role, and so forth. If anyone would like to amplify or clarify that, feel free.