Complex sentence: It was cultivated from Afghanistan to Portugal, also grown in Pithoragarh in the Kumaon hills of India and from the 15th century onwards, was grown in areas including Northern Europe and the New World.
Split into simpler sentences: It was cultivated from Afghanistan to Portugal, also grown in Pithoragarh in the Kumaon hills of India. From the 15th century onwards, it was grown in areas including Northern Europe and the New World.