Short answers, pulled from the story.
The boxwood writing tablet with an ivory hinge emerged from the 14th-century BC Uluburun Shipwreck near Kaş in modern Turkey and was recovered during a dig in 1986. This artifact confirmed that Homer's references to writing tablets were not anachronistic.
Most tablets consisted of wood covered with a layer of beeswax mixed with plant oils and carbon pigments. This mixture had a melting point of about 65 degrees Celsius and contained between 5, 10% plant oils which helped maintain flexibility during repeated use.
Hermann of Reichenau lived between 1013 and 1054 and used wax tablets as part of his daily work. Hériman of Tournai resided from 1095 to 1147 within the abbey of St Martin of Tournai and recorded certain amounts directly onto tablets during monastery operations.
The salt mining authority at Schwäbisch Hall employed wax records until the year 1812. This practice persisted longer than most commercial applications due to the durability required for heavy industrial logging before paper and ink replaced wax surfaces entirely in most sectors by the late 1800s.