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conditions. According to the climatic zone of communities, people were limited to a select range of species and time of the year in which they could grow plants. Yet around 30 CE, the Roman Empire built the first recorded attempt of an artificial environment. Due to emperor Tiberius's declining health, the royal physicians recommended that the emperor eat one cucumber a day. Cucumbers, however, are quite tender plants and do not grow easily year-round. Therefore, the Romans designed

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