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We attach copies of the circle to points of a countable dense subset $D$ of aseparable metric space $X$ and  construct an earring space $E(X,D)$. We show that the fundamental group of$E(X,D)$ is isomorphic to a subgroup of the Hawaiian earring group, if thespace $X$ is simply-connected and locally simply-connected. In addition if thespace $X$ is locally path-connected, the space $X$ can be recovered from thefundamental group of $E(X,D)$.

Making spaces wild (simply-connected case)