In 1893 the construction was completed in Budapest of an underground railway with a thin, flat roof, consisting of steel beams set close together, with small longitudinal jack arches between them, the street pavement .
Budapest hereupon fell to the Turks, who appointed John.
His education was completed at the Calvinist college of Sarospatak and at the university of Budapest.
Supported by the influence of Louis Batthyany, after a keenly fought struggle he was elected member for Budapest in the new Diet.
His complete works were published in Hungarian at Budapest in 1880-1895.
