There were many affairs and four marriages.

ECONOMIST: Frank Sinatra

By 1971, two years after Garland, who had become a good friend on the Vegas circuit, died of a drug overdose at age 47, Betty Hutton age 50, surveying four shattered marriages and a wrecked career was on track for the same fate.

FORBES: Betty Hutton's Miraculous Recovery

More than four out of 10 marriages in Hawaii were mixed, the highest intermarriage rate of any state.

WSJ: Interracial Marriages in U.S. Reach a Record

Five marriages, four ending in divorce, the first with a man who beat her and the fourth, in 1968, with Stokely Carmichael, the leader of America's Black Panthers.

ECONOMIST: Miriam Makeba

He has four other grown children from three previous marriages.

FORBES: No Sign Of Foul Play In Russian Tycoon Boris Berezovsky's Death, Say Police

Here's the premise of "Newlyweds: The First Year": Four couples allow a production team inside their minty-fresh marriages to chronicle all the trials and tears over sex and fabric patterns that are sure to ensue during the next 12 months.

WSJ: 'Newlyweds' and the Bizarro World of Reality-Show Marriage | Newlyweds: The First Year | Dance Moms | Maron | Television Reviews by John Anderson

Divorce, four times commoner than it was 30 years ago, ends almost half of marriages.

ECONOMIST: Norway

What he did took a great deal of courage, especially considering that a recent Gallup poll showed 48% of Americans are against same-sex marriages and that North Carolina, a swing state he barely won four years ago, just voted against marriage equality and civil unions, with a vote of 61% to 39%.

CNN: Will Romney use gay marriage issue against Obama?

Research into four European countries by Suzana Koelet of the Free University of Brussels and others confirms that international marriages have not risen as much as one might have expected in Europe.

ECONOMIST: International marriage