What was going on when I was born?

A music review on Monday, on the duo that appeared Friday at the Bottom Line, misidentified a member. He was Sam Daniels.

The Rev. Jesse Jackson today assailed Walter F. Mondale for failing to consider him as a running mate and accused Jewish leaders of attempting to ''distance'' Mr. Mondale from him. Mr. Jackson made the comments in a telephone interview as aides privately said the candidate was bitter over his treatment by Mr. Mondale in recent days. They also said Mr. Jackson expected to engage in floor fights on five major issues next week at the Democratic National Convention. Bitter About Jewish Leaders Mr. Jackson's comment came after the publication today of an interview in The Los Angeles Times in which he expressed doubt that former Vice President Mondale was seriously considering a black as a running mate. Mr. Jackson also said one reason he had not been considered was that ''threats to Mondale by a significant number of Jewish leaders was very evident.'' Mr. Jackson complained in that interview of ''the struggle by Jewish leaders to make me a pariah and isolate our support, attempt to separate me from the masses.''

The world's population may double to 10 billion by 2050, with most of the increase in poorer, developing countries, whose economic growth may be held back, according to a forecast by the World Bank. The organization urged intensification of Government- sponsored population control programs. (Page A1, Column 3.) Beirut's crossing points were open and activity at the seaport and the airport resumed in the first day of real calm since a Government peace plan took effect a week ago. Traffic flowed freely through four gateways leading to the Moslem and Christian parts of the capital. (A3:4.)

The Dayco Corporation appeared yesterday to have finally won its tangled, two-year-long legal battle with a former sales agent, Edith Reich, after a Federal judge dismissed Mrs. Reich's charges against the company's chairman, Richard J. Jacob, and other executives. The judge found that Mrs. Reich had failed to comply with court requirements in giving evidence both in her suit against Mr. Jacob and in Dayco's suit against Mrs. Reich. The ruling, known as a default, means Mrs. Reich and her two companies, the New York-based Foreign Transactions Corporation and the London-based Trachem Company Ltd., must now pay damages to settle Dayco's claim that she defrauded the Ohio-based rubber and plastics components manufacturer in a multimillion-dollar contract with automotive and tractor companies in the Soviet Union. Claims and Counterclaims Dayco contended that Mrs. Reich had defrauded the company by placing orders that were supposedly for Soviet customers but were in fact nonexistent. Mrs. Reich, in turn, charged that Dayco executives had engaged in extortion and kickbacks.

Thousands of people arrested in New York City are being held in custody for two days or more awaiting their first court hearing - a situation described by some officials as illegal and inhumane. Federal court rulings have held that the time between arrest and arraignment can be no longer than 24 hours. Under New York State law, a suspect must be taken into court for arraignment and a bail hearing ''without unnecessary delay.'' But in Manhattan and the Bronx, where the delays are worst, suspects, some of them teen-agers, are being detained an average of two days in hot, overcrowded, sometimes dangerous facilities. Unlawful Imprisonment Charged Defense attorneys argue that the delay is unlawful imprisonment, since the suspects have not been convicted.

The ITT Corporation, the telecommunications conglomerate, slashed its quarterly dividend yesterday by more than half and said it would report sharply lower earnings for this year's second quarter. Rand V. Araskog, ITT's chairman, president and chief executive officer, said the company's directors had voted to cut its quarterly dividend to 25 cents a share, from 69 cents a share, so ITT could continue investing in high technology, reduce its debt and pursue new business opportunities. The dividend is payable Oct. 1 to stockholders of record Aug. 9. Mr. Araskog estimated the company's second-quarter profit at 50 to 55 cents a share, down from $1.03 a share in the second quarter of 1983.

Rising interest rates have caused most thrift institutions to turn cautious, but the high-flying Financial Corporation of America is continuing to chase rapid growth. Some financial advisers and investment analysts have expressed concern about this growth, saying Financial is likely to face an increasing burden of costly short-term borrowings and rising loan delinquencies unless interest rates retreat in coming months. But for Charles W. Knapp, a charismatic alumnus of the worlds of investment banking and real estate development who is Financial's chairman and chief executive, these doubts are not a surprise. 'Everyone Is Taking Their Shots' ''It's that time in the rate cycle and everybody is taking their shots at us,'' he said. Mr. Knapp is counting on rates to ''stabilize'' shortly and then decline gradually. That was the same prediction he offered six months ago, but rates since then have risen.

Seven years after a Williams College honors graduate was shot to death in the Bronx early Christmas Day, two men were arrested yesterday and charged with his murder. The victim, Michael D. Johnson, was shot once in the back shortly after he left midnight mass in the chapel at Fordham University, where he was a graduate student in business administration. He was 23 years old. The killing occurred as he walked alone after having escorted a young woman home and kissed her good night. Mr. Johnson was black, the woman was white.

Because of an editing error, an article Saturday on the Jacksons' new album, ''Victory,'' incorrectly described the first concert program of the group's summer tour. It included no songs from the record.

Former officials of the Church of Scientology say they helped L. Ron Hubbard, the reclusive founder of the cult- like organization, to secretly divert more than $100 million from the church into foreign bank accounts he controlled. The organization, long a subject of investigations in this country, Britain, France, Australia, South Africa, Spain and elsewhere, has maintained that Mr. Hubbard cut his ties to it in the mid-1970's, that he has received only a token consulting fee of $35,000 annually since then and that its millions of dollars a year in revenue are being spent for charitable purposes. But former senior officials of the group asserted in interviews that at Mr. Hubbard's direction in the 1970's and into 1982, they had established a series of shell corporations set up to channel much of the church's resources to his overseas accounts. They said the scheme was also intended to shield him from criminal and civil proceedings against the organization by creating an illusion that he was no longer connected to it. Most of the money, they said, was on deposit in Luxembourg and Liechtenstein.

The unionized employees of the Long Island Lighting Company went on strike today after refusing to accept a 5 percent pay cut that the utility insists it needs to avoid bankruptcy. The strike officially began at 4 P.M., but Lilco had told workers on today's 8 A.M. shift that they did not need to report to work, giving management employees time to move into generating stations and other critical installations before picket lines formed. Cots and kitchens will be provided for the 1,465 supervisory and management workers, who have been ordered to begin working 12 hours a day without days off to replace the 3,900 striking workers. Enough Money for 6 Weeks The strike comes as the company is saying it is within six weeks of running out of money because of doubts in the investment community that its Shoreham Nuclear Power Station, a $4.1 billion plant that was originally budgeted to cost $350 million, can be licensed.

-away-from-it-all times that restore the soul, if not the body and mind. Leisure-time experts say that for most people vacations are an essential ingredient in an emotionally well-balanced life, a time that helps to make work during the rest of the year enjoyable or, at least, bearable. For those in emotionally intense professions, vacations can be vital to countering burnout. And for some workaholics, who might otherwise work themselves into an early grave, vacations can even be lifesaving. So why do so many vacationers fail to have a good time and return as stressed, anxious or depressed as they were before they left? Researchers who have studied the pleasures and pitfalls of vacationing Americans have isolated many reasons. Based on their findings - and sometimes on their personal vacation experiences as well - they can offer suggestions that may help to improve your vacation, if not this summer, then the next time you decide to get away for a while. Here are some factors worth taking into consideration: Vacation Styles