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How did the Masoretes preserve the Hebrew Bible through vowel signs and reading marks?

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Hebrew Bible Portion of the Aleppo Codex, a manuscript of the Hebrew Bible written in the Hebrew language in the 10th century ce; in the Shrine of the Book, Israel Museum, Jerusalem.

The Masoretes, scholars working in Babylonia and Palestine between the 7th and 10th centuries CE, were dedicated to preserving the Hebrew Bible with absolute fidelity. Because the original Hebrew text was written using only consonants, the Masoretes introduced two critical systems to ensure the text was read and pronounced correctly.1234

Vowel Signs

To address the lack of written vowels, the Masoretes developed systems of vocalization, the most prominent being the Tiberian system. This system utilized dots, combinations of dots, and small dashes to indicate short vowels and other phonological information, effectively standardizing the pronunciation of the sacred text.143

Reading Marks

In addition to vowel signs, the Masoretes added signs for stress and pause, known as ṭeʿamim, to facilitate the public reading of the Scriptures in the synagogue. These marks, which also served as guides for cantillation (the intoned liturgical recitation of the text), functioned as mnemonic devices to help readers maintain the traditional melodic formulas associated with the Bible. Through these meticulous efforts, the Masoretes ensured the authentic transmission of the text for future generations.152