I will shorten these as greatly as possible by Bishop Alexander Mileant (an Orthodox Bishop).
From the very first days after Her Dormition to the present time, the Most Holy Virgin has been giving succor to Christians. This belief is substantiated by accounts of Her appearances and especially by the multitude of miracles performed by Her icons. We shall mention here some of Her apparitions and miraculous icons.
Protection of the Holy Virgin. This feast was established in remembrance of Her apparition during the siege of Constantinople [Istanbul] in the middle of the 9th century. The Slavs [Variags], at that time pagans surrounded the city of Constantinople by sea and land with a huge army. Christians inside the city rushed to their churches with prayers for divine help. A beggar in the city, Saint Andrew the Fool-for-Christ's-sake, was in the church of Vlahern praying all night with many other Christians. In the fourth hour of the night, the Saint saw a majestic Woman, the Virgin Mary, coming forth above the royal gates (in the middle of the sanctuary) accompanied by John the Baptist, John the Theologian, and many saints, some preceding and some following Her, singing hymns and praying. Saint Andrew approached his pupil Epiphanius and asked if he also saw the Queen of the world. "I see Her and tremble," answered the latter. And while they looked, She stood above of the sanctuary and prayed for a long time.
Then the Virgin Mary removed Her veil and spread it over the church and the city. Saint Andrew told the people about this apparition of the Holy Virgin. Encouraged, they made a procession along the walls of the city and submerged in the sea an icon of the Virgin Mary. A few hours afterward a great storm arose and destroyed most of the enemy ships. The Slavs who survived retreated, and the town was saved. From that time many Slavs started to convert to Christianity. Saint Andrew by birth was also a Slav. Perhaps explains why Russians so greatly honor this appearance of the Mother of God to him and dedicate to this miracle the feast of the Protection of the Holy Virgin, which is celebrated each year on October 1/14.
The information that follows regarding other appearances of the Mother of God is drawn from foreign publications. Our Church has not as yet voiced its opinion on these events, and we cite them here simply as supplemental information.
Fatima, Portugal. On March 13, 1917, not long before the revolution in Russia, the Virgin Mary, surrounded by a radiance, appeared in Fatima, Portugal, to three shepherd children. For several months She continued to appear to the children, and at one of Her appearances five to eighteen thousand people convened from all parts of Portugal. An unforgettable miracle occurred when, after a torrential rain, unexpectedly there came an unusual light, and in an instant the people's soaked clothes became dry. The Virgin Mary was summoning the people to prayer and foretold the forthcoming conversion of Russia from godlessness to faith in God. The Roman Catholic Church later interpreted Her words as foretelling the conversion of Russia to Catholicism. However, this was not what the Virgin said. Now, as the Russian people turn back to God and to their Orthodox faith, we are witnessing the fulfillment of this prophecy.
Egypt. For more than a year from April 2, 1968, the Virgin Mary appeared in Zeitun, a suburb of Cairo, above a church dedicated to Her name. Her appearances, which usually occurred between midnight and five in the morning, attracted a multitude of worshipers. The Mother of God was surrounded by radiance as bright as the sun, and around Her there hovered white doves. Soon all of Egypt heard of the appearances of the Mother of God, and the government became concerned that these public gatherings at the site of Her appearances should proceed in an orderly fashion. The local papers wrote in Arabic about these apparitions of the Holy Virgin, and several press-conferences were held about them, during which people shared their impressions regarding what they had heard from Her. The Mother of God also visited individuals in the suburbs of Cairo, such as the Coptic patriarch who was skeptical of Her appearing to the people. During the appearances of the Mother of God there occurred many cures that were confirmed by local doctors.
The Washington Post on July 5th, 1968, wrote of additional appearances of the Theotokos over the Church of St. Damian, in the industrial area of Terra Gulaki, north of Cairo. The Virgin Mary was seen holding the infant Jesus in Her arms, and accompanying Her were several saints, among them St. Damian. As elsewhere, Her appearances were accompanied by many cures of incurable diseases: blindness, kidney and heart diseases and many others.
Medjugorje, Yugoslavia. From June of 1981 the Virgin Mary started to appear on a hill in Medjugorje. At these appearances there sometimes congregated as many as ten thousand people. Many saw Her surrounded by unearthly radiance. Then the appearances to the public stopped, and the Blessed Virgin began to appear regularly to six young people, speaking to them. Italian and other newspapers described these events, and Medjugorje became a place of constant pilgrimage by the faithful from all parts of the world. Our Lady slowly disclosed to the young people 10 mysteries, which they must impart to church representatives in due course. The Holy Virgin promised that on the third day after revealing Her last mystery She will leave a visible "sign" for the faithful. Representatives of the medical world and other highly-respectable people testify that the young people who have been seeing the Blessed Virgin were absolutely normal, and that their outward reactions to these appearances were natural. Often, the Virgin Mary, while weeping, told the young people of the necessity to establish peace on the earth: "Peace, peace! The earth will not be saved until peace is established over it. It will happen only when people find God. The Lord means life. Those who have sound belief in Him will attain life and peace… Christians have forgotten prayer and fasting." It is interesting to note that in Medjugorje, where atheism had predominated and where there were a lot of communist party members, most of the Medjugorjians became believers and renounced communism. Also in conjunction with the apparitions of the Mother of God in Medjugorje, there occurred many miraculous cures.
Lvov, Ukraine. At Easter 1985 in the town of Lvov, during the celebration of the Liturgy by the Metropolitan John at the Cathedral of the Holy Virgin Mary, in view of a great throng of faithful there suddenly appeared through the window pane a cloud as bright as a ray of sunlight. It slowly took the shape of a human form, and all acknowledged it to be the Holy Virgin. In a spiritual impulse, the people started to pray aloud and call upon Her for help. People standing outside also saw in the window the image of the Holy Virgin Mary and tried to enter and prayed aloud. The throng kept increasing as news of the miracle spread with the speed of lightning. All efforts of the militia to disperse those praying were in vain. People started to come from Kiev, the Pochayevskaya Lavra, Moscow, Tbilisi and other towns. The governor of Lvov requested that Moscow send some experts to investigate what was going on. The scholars began to argue that there were no miracles so that the people should disperse. Suddenly the Blessed Virgin spoke: "Pray; repent from your sins, since there is little time left …" After this She cured many cripples and sick. The vision of the Virgin Mary and the cures continued for three and a half weeks, and She spoke much on the salvation of mankind, as the people remained there day and night.
The Vladimirskaya Icon is one of the most ancient miraculous icons of the Mother of God. In the middle of the 5th century the Icon was transported from Jerusalem to Constantinople, and in the middle of the 12th century it was sent by the patriarch to Kiev, to the Grand Duke Yury Dolgoruky, and was placed in the Dievichy monastery in Vyshgorod. In 1155 Prince Andrew of Vyshgorod, when traveling to the North, took with him the miraculous Icon of the Blessed Virgin. On the way, there were held short divine services praising the Lord (Te Deums), and miracles occurred. On the banks of the Klyazma river the steeds carrying the Icon could not move. The prince called that place Bogolubov, that is, Beloved by God, and built there two stone churches, into one of which the Icon was placed. On September 21, 1160, the Icon was transferred into the church at Vladimir, and from then on it has been known as the "Vladimirskaya." Since 1395 the Icon has been located in the Uspensky Cathedral in Moscow, to the left of the royal gates. The Icon became famous due to many miracles performed. Before this Icon Russian tsars were anointed as rulers, and metropolitans were appointed. The feast day of the Icon is celebrated on August 26/September 8, as well as on May 21/June 3 in honor of the liberation of Moscow in 1521 from its bondage to the Crimean Khan.
The Icon of Kazan. In 1579, a nine-year-old girl by the name of Matrona, whose parents' house burned down during the 1579 fire in Kazan, saw in a dream the image of the Blessed Virgin Mary and heard a voice commanding her to retrieve a holy Icon hidden in the ashes of the burned house. The holy Icon was discovered wrapped in an old cloth under the stove, where it was buried, most likely during the rule of the Tartars when Christians were forced to conceal their faith. The holy Icon was triumphantly transported to the nearest church, the Church of St. Nicholas, and later to the Cathedral of the Annunciation, where it received renown for curing the blind. A copy was made of the Icon and sent to the tsar, Ivan the Terrible. In honor of its arrival, a special feast day was established on the July 8/21.
The Icon of Znamenia, which means "The Sign," also known as the Icon of Kursk. It was found on September 8, 1295, by a hunter at the root of a tree on the bank of the Tuskor River in the province of Kursk. When he took the Icon in his hands, a spring of water came from under the tree. The hunter built a chapel near the tree and placed the Icon therein. From that time the Icon began to perform many miracles. In 1383 the Tartars of the Crimea, devastating the province, cut the Icon into two parts and threw them into opposite directions. They took as prisoner the priest Bogolyub, who performed the services in the chapel. Having been redeemed by the envoys of the Grand Duke of Moscow, Bogolyub found the split pieces of the Icon, joined them, and miraculously they grew together. In 1597 the Icon was brought to Moscow by the will of Tsar Feodor Ioannovich. In view of the return of the holy relic, a monastery was founded which was given the name of the Root Hermitage. Since the time of Tsar Feodor Ioannovich, the Icon has been encased in a cypress board, with the portrayal of the Lord Sabaoth above and of Prophets on the sides.
In 1612 the Icon miraculously saved Kursk from being captured by the Poles. The grateful inhabitants built the monastery of Znamenie, into which the Icon was brought every year and stayed from the 12th of September until the Friday of the 9th week of Easter. The rest of the time it remained at the Hermitage.
On March 7, 1898 the Icon remained unharmed during an attempt by revolutionaries to blow it up in the cathedral of the Znamensky monastery. After midnight a bomb placed under the Icon went off with a terrible noise. Everything around was torn apart and scattered. Only the Icon remained intact. During the revolution the Icon was also stolen in April of 1918, but was miraculously found in a well several months later. Finally the Icon was taken from Russia in 1920 by Bishop Theophan of Kursk and placed in Holy Trinity Church in Belgrade, Yugoslavia. This Holy Image rendered great assistance when Belgrade was bombarded during the Second World War. Bombs never fell on the houses visited by the Icon, although they destroyed the surrounding areas. Presently the Icon resides in the Znamenia Cathedral in New York City, though from time to time it is taken to different temples of the Russian Orthodox Church Abroad for adoration. Every year numerous healings continue to flow from this Holy Icon.
The Weeping Icons. During the past 100 to 150 years there have appeared several Icons of the Blessed Virgin Mary with flowing tears. These miraculous events most probably point to the grief the Virgin Mary feels toward mankind at the approach of the antichrist.
In February of 1854, in the Romanian Orthodox monastery of Sokol, one of the Icons of the Blessed Virgin Mary began to weep. This miracle coincided with the Crimean war in Russia and drew thousands of pilgrims daily. The weeping sometimes occurred every day, and sometimes at intervals of 2 to 3 days.
In March of 1960, a lithograph of the Icon of the Virgin Mary, known as that of the "Passion," that belonged to a Greek Orthodox family from Long Island, New York, began to weep. When the Icon was transported to the Cathedral of St. Paul, white doves hovered above the Icon. The paper on which the Icon was imprinted became wrinkled from the copious flow of the tears. At times the tears appeared bloody, and pious pilgrims pressed pieces of cotton to the Icon to take home and apply to the ill. Shortly afterward a lithograph of the Icon of the Blessed Virgin Mary of Iveron that belonged to another Greek Orthodox family in that same area also began to flow tears. These two weeping Icons drew a great number of praying people, and both local and foreign papers have described the great number of miracles emanating from them. One of the Icons has been examined by scientists in order to determine the origin of this fountain of tears, and scholars at the University of British Columbia confirmed the fact that the tears did flow but could not explain this from a scientific point of view (Orthodox Life, 1960, n. 8, p. 8).
On December 6, 1986, the Icon of the Blessed Virgin Mary on the altar screen in the Albanian Church of St. Nicholas the Complaisant, in Chicago, began to weep. This miracle has been attracting up to five thousand people to the church who wished to see this miraculous Icon with their own eyes. The weeping Icon was painted 23 years ago by a Manhattan painter by the name of Constantine Yussis. A specially gathered committee confirmed that "there could be no explanation of this enigma."