Who may testify.

Every person of sound mind and discretion, except as hereinafter provided, may be a witness in any action, or proceeding.

[1986 c 195 § 1; Code 1881 § 388; 1877 p 85 § 390; 1869 p 103 § 383; 1854 p 186 § 289; RRS § 1210.]