After the veneration of the image, visitors gather in the Concordia Plaza for the "trueque" (trade), to exchange and sell goods, a tradition from the pre-Hispanic period. Common items include cheese from Chiautla, fresh and dried herbs (both culinary and medicinal), ocote wood, incense, nuts, fruits from various parts of Puebla state, resins, "mecapales", vanilla pods, saffron, peanuts, and crafts such as palm frond mats (petates), baskets, clay pots and wooden utensils. While September 8 is considered to be the date of the Virgin's first appearance in Cholula, the date is also related to Chiconauhquiauhitl (goddess of nine rains) who was worshiped at the top of this pyramid at the end of the pre-Hispanic period. The Spanish replaced this image with that of the Virgin of the Remedies. Very early on 8 September, residents and pilgrims come to the pyramid and sanctuary to sing "Las mañanitas" and carrying paper lamps. This is the most important religious event in the city, with events related to it on almost every block. This event brings in people from all parts of the city and from many parts of the region. One tradition associated with this is the exchange of small gifts among the strangers in the crowd. Traditional dress is usually worn only for this event. For women, this includes a black or dark blue skirt, with trim in magenta, or emerald green, a wrap belt tied on the hip, a blouse embroidered with flowers, a rebozo or neckerchief, with earrings and a cross of silver. Men wear loose pants and shirts of natural cotton cloth, huaraches, a wrap belt with one end hanging loose in front, and wool shoulder wrap decorated with geometric designs and a palm frond hat. Concurrent with the feast of the Virgin from the 1 to the 16th of September is the regional fair. The trueque, while still practiced in its original form, has also evolved into this regional fair, called the Feria de Cholula. It features local food and music, culminating on Mexico's Independence Day.