 It also indicates a breath mark when reciting, along with the asterisk, and is thus frequently seen beside a comma.In the 16th century, the printer and scholar Robert Estienne (also known as Stephanus in Latin and Stephens in English) used it to mark differences in the words or passages between different printed versions of the Greek New Testament ("Textus Receptus").Due to the variations as to the different uses of the different forms of the obelus, there is some controversy as to which symbols can actually be considered an obelus.