The study of heritage items has developed throughout the centuries, ever since the development and growth of collections, which then led to the opening of exhibitions and museums.
The knowledge about such heritage items can be very specialized, very deep, and the advancement of such progress is very important for the professionals in the field. Still, for the public, it is of utmost significance that the information resulting from such furthering of knowledge be adequately presented. This is how the need of appropriate museum mediation became very obvious.
Still, while there are museums undertaking massive actions in this regard, and even designing their exhibitions having the need of mediation in mind, there are cases where such initiatives are hardly known.
If, with the due care and consideration, for disabilities such as cognitive disorders, visual impairments or hearing impairments, special programs or devices can be put in place without too many complications, provided the necessary funding is available, in the case of physical disabilities things are different. Moreover, in some specific contexts of historical buildings, it is really not possible to add dropped kerbs or ramps. In some fortunate cases, with the due financial resources, exterior and/or interior elevators can be mounted, in a way that would not affect too much the aspect of the building. If this is feasible, then the due care has to be taken so that the wheelchair would fit in the elevator.
Another option would be the one of mounting special elevators attached to the rail of the stairway, but this might be more complicated from a technical point of view inside historical buildings.