Working with Sources in Creating Diachronic Corpus

The article discusses the practice of collecting and working on existing diachronic corpora of the English language, as well as sorting them. It also covers the important factors involved in creating any linguistic corpus, such as the necessary, sufficient and reasonable sources. The article goes into detail about the specific features and important aspects of working with text units that are specific to diachronic corpora. Theoretical views, scientific facts, and critical opinions are illuminated by using content analysis, classification, description, comparison, and empirical analysis methods.
Based on the theoretical viewpoints of Sh.M. Hamroeva, Y.O. Knyazeva, T.McEnery, R.Xiao, Y.Tono, R.A. Karimov, A.A. Rakhmanova, U.M. Kholiyorov, G.H. Begmatova, and other scientific theories, specific principles have been developed for textual units to be included in the general and diachronic corpus base. The general principles include the following: the material should be authentic and unedited; the total lexical volume should not be less than one million and should comply with the principle of representativeness; it was determined that proportionality in time and space is appropriate. The following four requirements have been listed separately as specific principles for diachronic corpora: 1) texts should be collected in chronological order; 2) transliteration of ancient or historical inscriptions of languages that have undergone alphabetic changes in writing graphics according to historical facts; 3) a relative approach to the standard requirements for entering texts in an equal volume; 4) the corpus should cover at least one decade. 
The article concludes by stating that the concept of diachronic corpus is highly significant in the field of corpus linguistics. It marks a new stage in the use of corpus analysis methods and is a crucial step in studying the stages of historical and gradual development that occur in language.