1. The problem is to evaluate the expression $i = 1i^2$. 2. Recall that $i$ is the imaginary unit defined by the property $i^2 = -1$. 3. Substitute $i^2$ with $-1$ in the expression: $$i = 1 \times i^2 = 1 \times (-1)$$ 4. Simplify the multiplication: $$i = -1$$ 5. Therefore, the value of the expression $i = 1i^2$ is $-1$.