jonoxue 新手上路 注册 2020-01-24 消息 6 荣誉分数 0 声望点数 1 2020-01-28 #13 Did you know? In 1990 the number of extrasolar planets discovered beyond our Solar System was 0. Now the number is over 4000!
Did you know? In 1990 the number of extrasolar planets discovered beyond our Solar System was 0. Now the number is over 4000!
jonoxue 新手上路 注册 2020-01-24 消息 6 荣誉分数 0 声望点数 1 2020-01-31 #15 Did you know? The Periplus of the Erythraean Sea (Περίπλους της Ερυθράς Θαλάσσης) was a book written in the first century CE describing trade routes and geography from the Red Sea down the east coast of Africa and out to the west coast of India.
Did you know? The Periplus of the Erythraean Sea (Περίπλους της Ερυθράς Θαλάσσης) was a book written in the first century CE describing trade routes and geography from the Red Sea down the east coast of Africa and out to the west coast of India.
