Information for Homeowner Insurance: Plumbing & Electrical on Home?

Hi, I am trying to help my parents get new home owners insurance. I was asked the following questions: 1. What type of electrical wires are there in the home? 2. When were the electrical & plumbing last updated ? I have no idea where to find the information. Can anyone help? This is a single family home in... show more Hi, I am trying to help my parents get new home owners insurance. I was asked the following questions:
1. What type of electrical wires are there in the home?
2. When were the electrical & plumbing last updated ?

I have no idea where to find the information. Can anyone help?
This is a single family home in California, built in 1950.
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