sesquicentennial
1. And it is the sesquicentennial of the book next year, along with the bicentennial of Darwin's birth, which will be more widely marked than the 1858 event.
明年是这部著作出版150周年,同时也是达尔文诞生200周年,二百周年纪念将比1858年的事件更加引人注目。