Tree of 40 Fruit the New York State Agricultural Experiment Station, which was closing due to funding cuts. He began to graft buds from some of the over 250 heritage varieties grown there, some unique, onto a stock tree. Over the course of about five years the tree accumulated branches from forty different "donor" trees, each with a different fruit, including almond, apricot, cherry, nectarine, peach and plum varieties. Each spring the tree's blossom is a mix of different shades of red, pink and white. , Van Aken had produced 16 Trees of 40 Fruit, installed in a variety of private and public locations,
Bada' of bada’ plays a central role in the Twelver way of expecting the Mahdi. According to Twelvers, by having faith in bada’, people would keep themselves ready all the time to receive the Mahdi. However, a person who has no faith in the alteration of the signs (due to bada’) and thinks of the reappearance of the Mahdi after the sighting of the signs is actually waiting primarily for the sighting of the signs and then for the Mahdi. Such an individual may deny the Mahdi if he reappears without the signs being fulfilled, as Abu Ubaida al-Hadhaa narrates: Bada'