Was bitcoin the first to use SEED phrase for recovering account?
Was bitcoin the first to use a seed phrase design.

I've no idea whether Bitcoin was the first cryptocurrency for which there was a wallet that supported a system of seed-phrases.
Not all Bitcoin wallets support seed-phrases. Notably the reference implementation Bitcoin- Core does not yet support seed phrases.
BIP39 - Mnemonic code for generating deterministic keys was defined or published on 2013-09-10.
According to Electrum their seed-phrase system was introduced two years earlier?

When you create a bitcoin account by then, do you get a seed phrase

Not in general.
Nor do you create a bitcoin account in general.
The archetypal process is to download a wallet program such as Bitcoin core and the first time you run it, it will generate a private-key. Wallets that support seed-phrases will instead generate a seed-phrase when first run and generate a private key from that.

Was there a timeframe when 2 types of virtual coins existed at same time.

Probably. I suspect the number of cryptocurrencies went from one cryptocurrency to thousands of cryptocurrencies in a very short period of time.
See

Some notable cryptocurrencies
A list of cryptocurrencies

Note that questions about any cryptocurrency other than Bitcoin would be off-topic here.