The first event took place on May 6, 1990. During this action, inhabitants of Romania were allowed that day, between 1 and 7 pm, to cross the Prut River in the Moldavian Soviet Socialist Republic without passport and visa. Along the border of 700 km on the Prut, were created eight checkpoints: Miorcani–Pererita, Stânca-Costești, Iași–Sculeni, Ungheni–Ungheni Bridge, Albița–Leușeni, Fălciu–Țiganca, Oancea–Cahul and Galați–Giurgiulești. Inhabitants from both sides of the border, which had been tightly enforced since World War II, gathered on each bank, many crossing what had been described as a watery Berlin Wall to see family members long separated by the frontier. The number of participants has been estimated at 1.2 million people. At Ungheni, approximately 250,000 crossed the border. The demonstration organized by the Cultural league for the unity of Romanians everywhere, in collaboration with the Bucharest–Chișinău Cultural Society and the Popular Front of Moldova, began early in the morning as thousands appeared on the Romanian side with armfuls of flowers. Participants began throwing flowers into the water that soon covered the surface of the river, symbolically creating a bridge between the two sides. At noon, a group of priests celebrated a Te Deum, after which church bells on both sides rang for a long time. Then, flowers were thrown into the river and meetings on the bridge began to take place. Speeches, slogans and appeals were absent. Popular music and games, festive meals and similar activities followed, with the event wrapping up around 6 pm. After this action, the procedures of crossing the Romanian–Soviet border have been simplified considerably.
The second Bridge of Flowers took place on June 16, 1991. This time, the inhabitants of Moldova have been able to cross the border without papers in Romania. According to a report released by Rompres, more than 150,000 people from Bessarabia crossed the border at Sculeni into the Iași County. Among them was a delegation of Members of Parliament of the Republic of Moldova led by Nicolae Costin, the Mayor of Chișinău. In Galați, in front of the Precista Church, arose on this occasion a crucifix symbolizing the union. At the second Bridge of Flowers is estimated to have attended a number of people comparable to that of 1990.
