Despite being an off-screen couple since 1988, they did not publicly acknowledge their relationship until 2008.

Despite being a longtime couple off-screen, they did not publicly acknowledge their relationship until 2008.

His work in computing was not fully acknowledged until the 1970s.

The authorship was not openly acknowledged, however, until the publication of the book, the following May.

The agency was created in 1960, but the Government generally refused to acknowledge its existence until 1992.

It did not formally acknowledge mercury as the cause of the poisoning until 1968.

However the Horgen city council refused to acknowledge this until 1877.

The existence of MI6 was not officially acknowledged until 1994.

Although the lineup had changed, most listeners did not acknowledge a major stylistic shift until much later.

The Soviet government refused to acknowledge the incident until 1989, then claiming only 78 deaths.