1·欧洲书籍最大的变化出现在1439年，当年约翰内斯·古腾堡发明了印刷机。
The biggest change for books in Europe came in 1439, when Johannes Gutenberg invented the printing press.
2·狼群在城市肆虐；1439年，蒙马特附近有14人被狼吃了。
Wolves scavenged in cities; in 1439 they ate 14 people near Montmartre.
3·1439年，一位商人的后裔在斯特拉斯堡——古滕伯格当时居住的地方——对古滕伯格提起诉讼。
In 1439, the heirs of a businessman in Strasbourg, where Gutenberg was then living, brought a lawsuit against him.