Attending the congress are 840 delegates from 37 countries, including the United States, Argentina, Sweden, Ukraine and Australia, organisers told AFP.
According to unofficial estimates there are around 250,000 Druze in Lebanon, a country of four million, around 150,000 in Israel and half a million in Syria.
The Druze are an offshoot of Shiite Islam. Little is Graduation Dresses about their religion which is extremely secretive.
Traditional Druze are recognizable by their white knit caps, handle-bar moustaches and black sherwals, or baggy trousers. Traditional Druze women wear long black dresses and white headscarves.

Kalanganga district has received drugs and other Homecoming Dresses estimated at a sh422.5m to fight tsetse flies. The drugs include insecticide pour-on for livestock and some for treatment of tsetse traps.
Bright Rwamirama, the animal husbandry state minister, handed over the items over the weekend. During the same function at Lutoboka landing site, the minister officially launched a project that is aimed at wiping out tsetse flies in the area.
Tsetse flies transmit sleeping sickness in human and Nagana in animals. Rwamirama explained that the project would go a long way curbing tsetse fly and trypanosomiasis problems in the country.
He warned residents to stop misusing the traps or dresses for their children from the nets because they are dangerous to humans. "Make by-laws where by anyone caught misusing them should be punished heavily," he advised.
The minister had learnt from the LC5 chairman, Daniel Kikoola, that some fishermen use the traps to dry their mukene (dagga fish), while others use them to process a local brew known as kwete.
The minister also promised to send a boat and 50 bicycles to the Kalangala entomology department to ease the transport problems for the 50 community volunteers who will be setting and monitoring traps in the field.
Fredrick Luyimbazi, the project co-ordinator, had explained Little Black Dresses the group was finding it hard to monitor the 64 islands in Kalangala.

Dior designer John Galliano threw off any notion of recession with his boisterous collection of tight bodices and swinging skirts that recalled the extravagance of Dior’s 1950’s New Look.
The haute couture collection, designed for the winter of 2011 and shown in Paris this week, seemed to plead for spring, with contrasting primary colours and an abundance of swinging organza.
Models wore spiked strappy sandals and some had their heads wrapped in yellow or red cellophane as though they were bouquets of flowers. The show recalled the ‘Tulip line’ designed by Christian Dior in 1953 when the house was the beacon of French fashion.
“This show was such fun, after watching the news short prom dresses morning, with the oil spill and everything,” said Joyce Samuels, who has been buying Dior for 40 years.
Haute couture remains among the most expensive fashion in the world.