Ancient Egypt

Present styles of Western dress evolved gradually from the garments worn by the people of ancient civilizations. The people of Egypt's Old Kingdom (which began about 2700 BC) wore very few clothes. The men's sole garment, the schenti, or loincloth, was wrapped about the hips and held in place by a belt.
Source: http://www.britannica.com/ebi/article-199743



No Trousers

Originally, Romans had no trousers, but later they adopted one for riding and hunting. It was called the Gallic bracae. It resembled riding breeches. Sometimes Roman soldiers stationed in the north wore bracae for warmth.
Source: http://www.classicsunveiled.com/rome.../clothmen.html


Historical

Only certain types of skirt, made only from certain fabrics in certain styles, are considered acceptable for men. For the most part, this freedom is restricted to certain professions and special occasions. For instance, a tartan kilt is considered socially acceptable in Scotland for formal occasions such as weddings, and is still worn by some military units; a foustanella has similar uses in Greece; and a cassock is acceptable for clergy in some churches.

# Most European men, although usually wearing hose or leggings underneath, wore types of tunics that were effectively dresses until the 14th century.

In many non-Western cultures it is considered normal for men to wear skirted garments for everyday activities. Examples include the Fijian sulu, Polynesian lava lava, Arabian thawb, Moroccan djellaba, East African kitenge, West African Boubou, Peruvian kilt, Indonesian sarong, and the Indian lungi. The proportion of the world's male population who are permitted to wear unbifurcated garments for everyday activities may be as high as 70% (guess).[2]
Source: http://en.wikipedia.org/wiki/Men_in_skirts


All through History men have worn kilt like garments. (I don't much care for the last source where they are referred to as skirts but its there) It was when horse riding became more common place that pants became more normal.

The fantasy LARP I play in, there are more men wearing skirts (yes actually they are wearing skirts) than women. While most of the women choose to wear pants. Its part of the 'period' in which we play. While not having to worry with historical accuracy due to this being a fantasy LARP, the guys enjoy wearing their skirts. One man did wear a kilt and when my son is old enough to go, he will probably wear his kilt.