Corpus of Historical American English (COHA)

The Corpus of Historical American English (COHA) is the largest structured corpus of historical English. It is related to many other corpora of English that we have created. These corpora were formerly known as the "BYU Corpora", and they offer unparalleled insight into variation in English. If you are interested in historical corpora, you might also look at our Google Books (see comparison), Hansard, and TIME corpora. COHA contains more than 475 million words of text from the 1820s-2010s (which makes it 50-100 times as large as other comparable historical corpora of English) and the corpus is balanced by genre decade by decade. The creation of the corpus results from a grant from the National Endowment for the Humanities (NEH) from 2008-2010. Access to material is limited to UCLA graduate students and faculty. Undergraduates please use the standard web interface for the corpora: https://www.english-corpora.org/coha/

历史美国英语语料库（Corpus of Historical American English, COHA）是目前规模最大的结构化历史英语语料库。它与我们团队打造的多款英语语料库均有关联。这些语料库曾被称为BYU语料库（BYU Corpora），可为英语语言变体研究提供无可比拟的洞察视角。若您对历史语料库感兴趣，还可参考我们的谷歌图书语料库（Google Books，可查看对比分析）、英国议会辩论实录（Hansard）以及《时代》（TIME）语料库。COHA涵盖1820年代至2010年代的文本共计逾4.75亿词，其规模相当于其他同类历史英语语料库的50至100倍，且该语料库按年代与体裁逐十年保持均衡分布。本语料库的创建依托美国国家人文基金会（National Endowment for the Humanities, NEH）2008年至2010年的专项资助。目前仅加州大学洛杉矶分校（University of California, Los Angeles, UCLA）的研究生与教职员工可获取完整内容，本科生请通过该语料库的标准网页界面访问：https://www.english-corpora.org/coha/