1910, begun in Spokane, Washington, U.S., but not widespread until 1940s; an imitation of Mother's Day.
updated on October 21, 2014
英语词源词典收录了45867条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。