The OALD has a long history dating back to 1948, when it was first published by Oxford University Press (OUP). The dictionary has undergone numerous revisions and updates, with the most recent edition being the 10th edition, published in 2020. Throughout its history, the OALD has maintained its reputation as a leading reference work for English language learners, offering detailed entries, example sentences, and usage notes to help users understand and use English accurately.