1936: Heinz Voderberg from University of Greifswald, Germany, published a remarkable article. He described the construction of tiles with weak (2, 1)- and (2, 2)-enclosure property.
Definition: A tile has the weak (2, r)-enclosure property, if there exists a tiling patch, where two copies T_A and T_B of the tile surround r other copies T₁, T₂, T₃, ..., and T_r in a way, that ...
(1) no tiles overlap and
(2) the patch has no holes and
(3) each tile T_i has at most two points in common with the boundary of the patch for i = 1, 2, 3, ..., r.

See English translation Voderberg-English of Voderberg's article, or a German copy Voderberg-Abschrift.

1955: Michael Grünbaum derived tiles with weak (2, r)-enclosure property for all positive integers r from Voderberg's nonagon.

2002: Casey Mann derived tiles with strong (2, r)-enclosure property from Voderberg's and Grünbaum's tiles.
Definition: A tile has the strong (2, r)-enclosure property, if it has the weak (2, r)-enclosure property and no inner tile T_i has a point in common with the boundary of the patch for i = 1, 2, 3, ..., r.

Opposite to Voderberg's and Grünbaum's tiles, the tiles of Casey Mann do not admit a tiling of the plane.
The author of this website could find tiles with strong (2, 2)-enclosure property in 2020 and with strong (2, 1)-enclosure property in 2024, which additionally can tile the plane. These tiles are called Voderberg-Dragons or V-Dragons (this name was suggested by several people).