This visit marked not only his life and professional career, but also had a decisive influence on mathematical studies in Argentina.

Officially, the visit marks the 10th anniversary of diplomatic relations between the two countries.

Some hoped the visit marked a new era for race relations; others said the money could have been better spent.

This visit marked an important step in the strengthening of bilateral relations - it established the strategic partnership between the two countries.

This visit marked the first reunion with his 85-year-old mother, after a separation of 40 years.

That first visit marked the striking of a delicate bargain between the detective and the family.

Douglas hoped that the former first lady's visit would mark a turning point in the campaign.

This visit marked the beginning of phase two of the project.

His visit marked the opening of the first regular bus route between the quarrelling nations since their foundation over 50 years ago.

Some diplomats suggest the visit may mark the beginning of a period of hard bargaining over the prisoners.