51.  The agreeing sides affirm the obligations to refrain from the first use of nuclear weapons against each other and from aiming strategic nuclear missiles at each other.

52.  The attack was the first use of the crude rocket, which Israel says is made by the militant Hamas organization, against an Israeli city.

53.  The contract marks the first countrywide use of the CDMA system in Latin America, Motorola said.

54.  The first use of the system will be in highly populated cities in Japan, where radio spectrums may be saturated by the end of the century.

55.  The first uses of the device are likely to be employees whose job it is to talk with customers, Thomson said.

56.  The first use of that additional information has been far better picture quality and CD-quality sound.

57.  The first use of the system will be in highly populated cities in Japan, where radio spectrum may be saturated by the end of the century.

58.  The first countywide use of the new machines comes in the fall gubernatorial primaries and general election.

59.  The first large-scale use of Government-controlled corporations came with the First World War.

60.  The first uses of DVD, with sales starting later this year, will be to play prerecorded movies and to store computer data.