Background: For the occasion of the 50th anniversary of the journal Clinical Chemistry and Laboratory Medicine ( CCLM ), an historic overview of papers that the journal has published in the field of laboratory hematology (LH) is presented. Methods : All past volumes of CCLM were screened for papers on LH and these were categorized. Bibliographic data of these papers were also analyzed. Results: CCLM published in total 387 LH papers. The absolute number of LH papers published annually showed a significant increase over the years since 1985. Also the share of LH papers demonstrated a steady increase (overall mean 5 % , but mean 8 % over the past 4 years). The most frequent category was coagulation and fibrinolysis (23.5 % ). Authors from Germany contributed the most LH papers to the journal (22.7 % ), followed by the Netherlands and Italy (16.3 and 13.2 % , respectively). Recent citation data indicated that other publications cited LH review papers much more frequently than other types of papers. Conclusions: The history of the journal reflects the emergence and development of laboratory hematology as a separate discipline of laboratory medicine.