The Easter Egg Roll is one of the oldest White House traditions. It dates to 1878 and the presidency of Rutherford B. Hayes, who opened the lawn to children after Congress banned them from rolling eggs on the grounds of the U.S. Capitol.

This year’s White House Easter Egg Roll event will feature activities “courtesy” of a number of corporate sponsors, including several tech companies that made financial contributions to President Donald Trump’s inaugural committee.

First Lady Melania Trump’s Easter Egg Roll, scheduled for Monday, features corporate sponsors for the first time in the event’s history, among them major Silicon Valley corporations. The event — which takes place when egg prices are at record highs and avian flu is spreading through flocks — features a reading nook and photo op sponsored by Amazon;