[a][2][3][4][5] His teachings had a strong influence, most immediately in the approval of a reformed Bohemian religious denomination and, over a century later, on Martin Luther.

On 24 June 1405, Pope Innocent VII directed the Archbishop to counter Wycliffe's teachings, especially the idea of impanation in the Eucharist.

[27] Then, in 1408, Pope Gregory XII warned Archbishop Zajic that the Church in Rome had been informed of Wycliffe's heresies and of the sympathies of King Wenceslaus IV of Bohemia for nonconformists.

[31] In 1408, the Charles University in Prague was divided by the Western Schism, in which Gregory XII in Rome and Benedict XIII in Avignon both claimed the papacy.

[32] In January 1409, Wenceslaus summoned representatives of the four nations comprising the university to the Czech city of Kutná Hora to demand statements of allegiance.

In 1411, John XXIII proclaimed a crusade against King Ladislaus of Naples, the protector of rival Pope Gregory XII.

[34] Archbishop Zajíc died in 1411 and with his death the religious movement in Bohemia entered a new phase during which the disputes concerning indulgences assumed great importance.

Hus asserted that no pope or bishop had the right to take up the sword in the name of the Church; he should pray for his enemies and bless those who curse him; man obtains forgiveness of sins by true repentance, not money.

In the meantime, the faculty had condemned the forty-five articles of Wycliffe and added several other theses, deemed heretical, which had originated with Hus.

Hus declared that Bohemia should have the same freedom in regard to ecclesiastical affairs as other countries and that approbation and condemnation should therefore be announced only with the permission of the state power.

[citation needed] By this time, Hus's ideas had become widely accepted in Bohemia and there was broad resentment against the Church hierarchy.

[41] Therefore he started to write many texts in Czech, such as basics of the Christian faith or preachings, intended mainly for the priests whose knowledge of Latin was poor.

[42] Of the writings occasioned by these controversies, those of Hus on the Church, entitled De Ecclesia, were written in 1413 and have been most frequently quoted and admired or criticized, yet their first ten chapters are an epitome of Wycliffe's work of the same title and the following chapters are an abstract of another of Wycliffe's works (De potentate papae) on the power of the pope.

[43] Wycliffe had written his book to oppose the common position that the Church consisted primarily of the clergy, and Hus now found himself making the same point.

To put an end to the papal schism and to take up the long-desired reform of the Church, he arranged for a general council to convene on 1 November 1414, at Konstanz (Constance).

Hus had been the captive of John XXIII and in constant communication with his friends, but now he was delivered to the bishop of Constance and brought to his castle, Gottlieben on the Rhine.

On the other hand, he denied having defended Wycliffe's view of The Lord's Supper or the forty-five articles; he had only opposed their summary condemnation.

The Bishop of Lodi (then Giacomo Balardi Arrigoni) delivered an oration on the duty of eradicating heresy; various theses of Hus and Wycliffe and a report of his trial were then read.

The judgment of the Church was pronounced: This holy synod of Constance, seeing that God’s church has nothing more that it can do, relinquishes John Hus to the judgment of the secular authority and decrees that he is to be relinquished to the secular court.A tall paper hat was allegedly put upon his head with the inscription "Haeresiarcha" (i.e., the leader of a heretical movement).

"[citation needed] Luther modified the statement and reported that Hus had said that they might have roasted a goose, but that in a hundred years a swan would sing to whom they be forced to listen.

At the last moment, the imperial marshal, von Pappenheim, in the presence of the Count Palatine, asked Hus to recant and thus save his own life.

In the same truth of the Gospel which I have written, taught, and preached, drawing upon the sayings and positions of the holy doctors, I am ready to die today.

Rome then pronounced a crusade against them (1 March 1420): Pope Martin V issued a Papal bull authorizing the execution of all supporters of Hus and Wycliffe.

King Wenceslaus IV died in August 1419, and his brother, Sigismund of Hungary, was unable to establish a real government in Bohemia due to the Hussite revolt.

It resulted in the Basel Compacts, in which the Catholic Church officially allowed Bohemia to practice its own version of Christianity (Hussitism).

There are reasons to suppose that Wycliffe's view of the Lord's Supper (consubstantiation rather than transubstantiation[55]) had spread to Prague as early as 1399, with strong evidence that students returning from England had brought the work back with them.

In explaining the plight of the average Christian in Bohemia, Hus wrote, "One pays for confession, for Mass, for the sacrament, for indulgences, for churching a woman, for a blessing, for burials, for funeral services and prayers.

The works of Jan Hus incorporate reforms to medieval Czech orthography, including the "hook" (háček) diacritic which was used to form the graphemes ⟨č⟩, ⟨ě⟩, ⟨š⟩, ⟨ř⟩ and ⟨ž⟩, which replaced digraphs like ⟨cz⟩, ⟨ie⟩, ⟨sch⟩, ⟨rz⟩ and ⟨zs⟩; the "dot" above letters for strong accent,[clarification needed] as well as the acute accent to mark long vowels ⟨á⟩, ⟨é⟩, ⟨í⟩, ⟨ó⟩, and ⟨ú⟩, in order to represent each phoneme by a single symbol.

[64]: 27 Jan Hus was a key contributor to Protestantism, whose teachings had a strong influence on the states of Europe and on Martin Luther.

[68] The Czechoslovak Hussite Church claims to trace its origin to Hus, to be "neo-Hussite", and contains mixed Eastern Orthodox and Protestant elements.