Officially - the FAI might disagree with you there !They defined it
Turning it into "who was first" just makes it a p1ssing contest.
Please note simplex
Perhaps it should be remembered that the Wrights were the subject of a campaign by some prominent american scientists to discredit their achievements,and also that during their patient and rational research they found that much of the accepted scientific 'knowledge' about aerodynamics was deeply flawed.They approached the subject in a logical and practical manner or if you prefer - a much more structured manner than others at that time.