{"era":"current","word":"algorithm","meaning":"A set of rules to be followed in calculations or other problem-solving operations, especially by a computer.","children":[{"era":"1200s","word":"algorismus","meaning":"system of numerical calculation","children":[{"era":"9th century","word":"al-Khwarizmi","meaning":"name of a Persian mathematician","children":[],"language":"Arabic"}],"language":"Medieval Latin"}],"language":"Modern English"}