The phrase "the first forum" is grammatically correct and usable in written English.
It can be used to refer to the initial or earliest forum in a series, or the first forum that is being mentioned in a discussion or writing. Example: "The first forum in the series focused on the topic of climate change and its impact on the environment."
"BattleBots" was not the first forum for mechanized melees.
The first forum was held in August 2007.
The first forum for ex-offenders to express their views to top civil servants is about to take place.
"You cannot get out of this rut and move the schools forward without an educator in leadership," Mr. de Blasio said at the first forum.
In order to properly hit the diplomatic reset button, in October 2000 the Chinese hosted the first Forum on China-Africa Cooperation (FOCAC).
On Tuesday 17 November, members of the Congressional LGBT Equality Caucus will hold the first forum on transgender violence to hear testimony from survivors, service providers, and policy experts.
The first forums have found many immigrants distrustful of the local police, unengaged with their elected officials and unable to find reliable legal help for their immigration problems.
I posted a request for someone to buy and deliver hors d'oeuvres on Task Rabbit — one of the first forums to match up task doers and taskmasters in the same neighborhood, thus enabling physical as well as virtual assistance.
BT said that the test was only carried out for two weeks - yet the second forum posting above was made in December 2006.
A day after the second Forum on India Pacific Islands Cooperation (FIPIC, see below) the Indian Government announced that there is widespread support of PICs for India's candidature in the UNSC (The Hindu 21.08.2015).
CBS' Bob Schieffer will moderate the third forum.
