Complex sentence: In 1964, a Brazilian land law was passed that supported ownership of the land by the developer: if a person could demonstrate effective cultivation for a year and a day, then that person could claim a right to the land.
Split into simpler sentences: In 1964, a Brazilian land law was passed whereby a provision would be provided which supported ownership of the land by the developer. If a person could demonstrate effective cultivation for a year and a day, then that person could claim a right to the land.