How to add a single custom route in rails?

I have transaction model, controller with view, which I created with rails generate. Now I need to add a single custom route of /transactions/history to my application to be handled by a controller def history:... end and render history.html.erb

So added this line in my routes.rb:

get '/transactions/history', to: 'transactions#history', as: 'transactions_history'

And this in my transactions_controller.rb:

def history
    @transactions = Transaction.all
end

and created a history.htmk.erb in transactions->views

I also see this line when calling rake routes:

transactions_history GET    /transactions/history(.:format)                 transactions#history

But when I request localhost:3000/transactions/history in my browser, it gives me the following error:

Couldn't find Transaction with 'id'=history

and I also see this line in logs:

Request info

Request parameters  
{"controller"=>"transactions", "action"=>"show", "id"=>"history"}

Why it is calling the 'show' action in my transaction controller?