in january 1798 the académie des sciences set up an international conference to take place in september of that year to give an international standing to the new value of the metre which the delambre -méchain survey had still to finalise.

Make this proper case.
In January 1798 the Académie des Sciences set up an international conference to take place in September of that year to give an international standing to the new value of the metre which the Delambre -Méchain survey had still to finalise.