In 2015, 14-year-old Ahmed Mohamed brought a self‑assembled digital clock to his school in Irving, Texas, intending to demonstrate his engineering skills. School officials mistook the device for a bomb, removed him from class and called police, who placed him in handcuffs and detained him at a juvenile facility. The school suspended him for three days. The incident later drew national attention, with President Obama inviting Mohamed to the White House, and it became a focal point in discussions about Islamophobia in the United States.