Petrus de Dacia, commonly referred as Sweden's first author, was a Dominican monk from Gotland. In his writings are the earth ball shape obvious.
Petrus de Dacia, ຫມາຍເຖິງທົ່ວໄປເປັນຜູ້ຂຽນຄັ້ງທໍາອິດຂອງ Sweden, ແມ່ນເປັນພະພິກສຸສົງ Dominican ຈາກ Gotland. ໃນລາຍລັກອັກສອນຂອງເຂົາເປັນໂລກຮູບຮ່າງລູກຈະແຈ້ງ.