BOSTON (JTA) — Harvard's divinity school may return a $2.5 million gift from the president of the United Arab Emirates with ties to a controversial Arab think tank.

The executive director of the Zayed Center for Coordination and Follow-up once denounced Jews as the "enemies of all nations."

In addition, the Web site for the center, which is described as a "fulfillment of the vision" of Sheik Zayed bin Sultan al-Nahyan, features a list of speakers including a Holocaust denier and one who alleges that the United States was behind the Sept. 11 attacks.

A spokesman for the school said a researcher recently had investigated the ties, but the spokesman declined to discuss the researcher's findings, according to newspaper reports in Boston.

Israel 55th concert abruptly postponed

WASHINGTON (JTA) — A Washington concert to mark Israel's 55th birthday has been postponed from next week until December.

Organizers denied speculation that cancellation of the May 19 event was due to poor ticket sales, saying it was postponed because of the sensitive nature of Israeli Prime Minister Ariel Sharon's visit to Washington the following day.

The event was to have featured comedians Jerry Seinfeld and Ben Stein and singers Tony Bennett, Norah Jones and Tovah Feldshuh.

Organizers had said President Bush and Sharon might attend, but White House officials said last week that the event had never been placed on the president's calendar.

The new event, slated for Dec. 18, is timed as a Chanukah celebration, and tickets already sold will be honored for the new date. People also can request a refund.